21106872

素因数分解:

$2^3\times 3^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:210

約数の個数: 128

約数和(自身を含む): 63840000

約数和(自身を除く): 42733128

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 27, 36, 37, 38, 54, 57, 72, 74, 76, 108, 111, 114, 139, 148, 152, 171, 216, 222, 228, 278, 296, 333, 342, 417, 444, 456, 513, 556, 666, 684, 703, 834, 888, 999, 1026, 1112, 1251, 1332, 1368, 1406, 1668, 1998, 2052, 2109, 2502, 2641, 2664, 2812, 3336, 3753, 3996, 4104, 4218, 5004, 5143, 5282, 5624, 6327, 7506, 7923, 7992, 8436, 10008, 10286, 10564, 12654, 15012, 15429, 15846, 16872, 18981, 20572, 21128, 23769, 25308, 30024, 30858, 31692, 37962, 41144, 46287, 47538, 50616, 61716, 63384, 71307, 75924, 92574, 95076, 97717, 123432, 138861, 142614, 151848, 185148, 190152, 195434, 277722, 285228, 293151, 370296, 390868, 555444, 570456, 586302, 781736, 879453, 1110888, 1172604, 1758906, 2345208, 2638359, 3517812, 5276718, 7035624, 10553436, 21106872]

約数ペア:

[(1, 21106872), (2, 10553436), (3, 7035624), (4, 5276718), (6, 3517812), (8, 2638359), (9, 2345208), (12, 1758906), (18, 1172604), (19, 1110888), (24, 879453), (27, 781736), (36, 586302), (37, 570456), (38, 555444), (54, 390868), (57, 370296), (72, 293151), (74, 285228), (76, 277722), (108, 195434), (111, 190152), (114, 185148), (139, 151848), (148, 142614), (152, 138861), (171, 123432), (216, 97717), (222, 95076), (228, 92574), (278, 75924), (296, 71307), (333, 63384), (342, 61716), (417, 50616), (444, 47538), (456, 46287), (513, 41144), (556, 37962), (666, 31692), (684, 30858), (703, 30024), (834, 25308), (888, 23769), (999, 21128), (1026, 20572), (1112, 18981), (1251, 16872), (1332, 15846), (1368, 15429), (1406, 15012), (1668, 12654), (1998, 10564), (2052, 10286), (2109, 10008), (2502, 8436), (2641, 7992), (2664, 7923), (2812, 7506), (3336, 6327), (3753, 5624), (3996, 5282), (4104, 5143), (4218, 5004)]