18990972

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:89

約数の個数: 288

約数和(自身を含む): 70447104

約数和(自身を除く): 51456132

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 13, 14, 17, 18, 21, 22, 26, 28, 31, 33, 34, 36, 39, 42, 44, 51, 52, 62, 63, 66, 68, 77, 78, 84, 91, 93, 99, 102, 117, 119, 124, 126, 132, 143, 153, 154, 156, 182, 186, 187, 198, 204, 217, 221, 231, 234, 238, 252, 273, 279, 286, 306, 308, 341, 357, 364, 372, 374, 396, 403, 429, 434, 442, 462, 468, 476, 527, 546, 558, 561, 572, 612, 651, 663, 682, 693, 714, 748, 806, 819, 858, 868, 884, 924, 1001, 1023, 1054, 1071, 1092, 1116, 1122, 1209, 1287, 1302, 1309, 1326, 1364, 1386, 1428, 1547, 1581, 1612, 1638, 1683, 1716, 1953, 1989, 2002, 2046, 2108, 2142, 2244, 2387, 2418, 2431, 2574, 2604, 2618, 2652, 2772, 2821, 3003, 3069, 3094, 3162, 3276, 3366, 3627, 3689, 3906, 3927, 3978, 4004, 4092, 4284, 4433, 4641, 4743, 4774, 4836, 4862, 5148, 5236, 5642, 5797, 6006, 6138, 6188, 6324, 6732, 6851, 7161, 7254, 7293, 7378, 7812, 7854, 7956, 8463, 8866, 9009, 9282, 9486, 9548, 9724, 11067, 11284, 11594, 11781, 12012, 12276, 13299, 13702, 13923, 14322, 14508, 14586, 14756, 15708, 16926, 17017, 17391, 17732, 18018, 18564, 18972, 20553, 21483, 21879, 22134, 23188, 23562, 25389, 26598, 27404, 27846, 28644, 29172, 31031, 33201, 33852, 34034, 34782, 36036, 39897, 40579, 41106, 42966, 43758, 44268, 47124, 47957, 50778, 51051, 52173, 53196, 55692, 61659, 62062, 66402, 68068, 69564, 75361, 79794, 81158, 82212, 85932, 87516, 93093, 95914, 101556, 102102, 104346, 121737, 123318, 124124, 132804, 143871, 150722, 153153, 159588, 162316, 186186, 191828, 204204, 208692, 226083, 243474, 246636, 279279, 287742, 301444, 306306, 365211, 372372, 431613, 452166, 486948, 527527, 558558, 575484, 612612, 678249, 730422, 863226, 904332, 1055054, 1117116, 1356498, 1460844, 1582581, 1726452, 2110108, 2712996, 3165162, 4747743, 6330324, 9495486, 18990972]

約数ペア:

[(1, 18990972), (2, 9495486), (3, 6330324), (4, 4747743), (6, 3165162), (7, 2712996), (9, 2110108), (11, 1726452), (12, 1582581), (13, 1460844), (14, 1356498), (17, 1117116), (18, 1055054), (21, 904332), (22, 863226), (26, 730422), (28, 678249), (31, 612612), (33, 575484), (34, 558558), (36, 527527), (39, 486948), (42, 452166), (44, 431613), (51, 372372), (52, 365211), (62, 306306), (63, 301444), (66, 287742), (68, 279279), (77, 246636), (78, 243474), (84, 226083), (91, 208692), (93, 204204), (99, 191828), (102, 186186), (117, 162316), (119, 159588), (124, 153153), (126, 150722), (132, 143871), (143, 132804), (153, 124124), (154, 123318), (156, 121737), (182, 104346), (186, 102102), (187, 101556), (198, 95914), (204, 93093), (217, 87516), (221, 85932), (231, 82212), (234, 81158), (238, 79794), (252, 75361), (273, 69564), (279, 68068), (286, 66402), (306, 62062), (308, 61659), (341, 55692), (357, 53196), (364, 52173), (372, 51051), (374, 50778), (396, 47957), (403, 47124), (429, 44268), (434, 43758), (442, 42966), (462, 41106), (468, 40579), (476, 39897), (527, 36036), (546, 34782), (558, 34034), (561, 33852), (572, 33201), (612, 31031), (651, 29172), (663, 28644), (682, 27846), (693, 27404), (714, 26598), (748, 25389), (806, 23562), (819, 23188), (858, 22134), (868, 21879), (884, 21483), (924, 20553), (1001, 18972), (1023, 18564), (1054, 18018), (1071, 17732), (1092, 17391), (1116, 17017), (1122, 16926), (1209, 15708), (1287, 14756), (1302, 14586), (1309, 14508), (1326, 14322), (1364, 13923), (1386, 13702), (1428, 13299), (1547, 12276), (1581, 12012), (1612, 11781), (1638, 11594), (1683, 11284), (1716, 11067), (1953, 9724), (1989, 9548), (2002, 9486), (2046, 9282), (2108, 9009), (2142, 8866), (2244, 8463), (2387, 7956), (2418, 7854), (2431, 7812), (2574, 7378), (2604, 7293), (2618, 7254), (2652, 7161), (2772, 6851), (2821, 6732), (3003, 6324), (3069, 6188), (3094, 6138), (3162, 6006), (3276, 5797), (3366, 5642), (3627, 5236), (3689, 5148), (3906, 4862), (3927, 4836), (3978, 4774), (4004, 4743), (4092, 4641), (4284, 4433)]