21691692

素因数分解:

$2^2\times 3^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:105

約数の個数: 144

約数和(自身を含む): 66729600

約数和(自身を除く): 45037908

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 19, 22, 27, 31, 33, 36, 38, 44, 54, 57, 62, 66, 76, 93, 99, 108, 114, 124, 132, 171, 186, 198, 209, 228, 279, 297, 341, 342, 372, 396, 418, 513, 558, 589, 594, 627, 682, 684, 836, 837, 961, 1023, 1026, 1116, 1178, 1188, 1254, 1364, 1674, 1767, 1881, 1922, 2046, 2052, 2356, 2508, 2883, 3069, 3348, 3534, 3762, 3844, 4092, 5301, 5643, 5766, 6138, 6479, 7068, 7524, 8649, 9207, 10571, 10602, 11286, 11532, 12276, 12958, 15903, 17298, 18259, 18414, 19437, 21142, 21204, 22572, 25916, 25947, 31713, 31806, 34596, 36518, 36828, 38874, 42284, 51894, 54777, 58311, 63426, 63612, 73036, 77748, 95139, 103788, 109554, 116622, 126852, 164331, 174933, 190278, 200849, 219108, 233244, 285417, 328662, 349866, 380556, 401698, 492993, 570834, 602547, 657324, 699732, 803396, 985986, 1141668, 1205094, 1807641, 1971972, 2410188, 3615282, 5422923, 7230564, 10845846, 21691692]

約数ペア:

[(1, 21691692), (2, 10845846), (3, 7230564), (4, 5422923), (6, 3615282), (9, 2410188), (11, 1971972), (12, 1807641), (18, 1205094), (19, 1141668), (22, 985986), (27, 803396), (31, 699732), (33, 657324), (36, 602547), (38, 570834), (44, 492993), (54, 401698), (57, 380556), (62, 349866), (66, 328662), (76, 285417), (93, 233244), (99, 219108), (108, 200849), (114, 190278), (124, 174933), (132, 164331), (171, 126852), (186, 116622), (198, 109554), (209, 103788), (228, 95139), (279, 77748), (297, 73036), (341, 63612), (342, 63426), (372, 58311), (396, 54777), (418, 51894), (513, 42284), (558, 38874), (589, 36828), (594, 36518), (627, 34596), (682, 31806), (684, 31713), (836, 25947), (837, 25916), (961, 22572), (1023, 21204), (1026, 21142), (1116, 19437), (1178, 18414), (1188, 18259), (1254, 17298), (1364, 15903), (1674, 12958), (1767, 12276), (1881, 11532), (1922, 11286), (2046, 10602), (2052, 10571), (2356, 9207), (2508, 8649), (2883, 7524), (3069, 7068), (3348, 6479), (3534, 6138), (3762, 5766), (3844, 5643), (4092, 5301)]