21887112

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:151

約数の個数: 128

約数和(自身を含む): 63504000

約数和(自身を除く): 41616888

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 29, 39, 41, 52, 58, 59, 78, 82, 87, 104, 116, 118, 123, 156, 164, 174, 177, 232, 236, 246, 312, 328, 348, 354, 377, 472, 492, 533, 696, 708, 754, 767, 984, 1066, 1131, 1189, 1416, 1508, 1534, 1599, 1711, 2132, 2262, 2301, 2378, 2419, 3016, 3068, 3198, 3422, 3567, 4264, 4524, 4602, 4756, 4838, 5133, 6136, 6396, 6844, 7134, 7257, 9048, 9204, 9512, 9676, 10266, 12792, 13688, 14268, 14514, 15457, 18408, 19352, 20532, 22243, 28536, 29028, 30914, 31447, 41064, 44486, 46371, 58056, 61828, 62894, 66729, 70151, 88972, 92742, 94341, 123656, 125788, 133458, 140302, 177944, 185484, 188682, 210453, 251576, 266916, 280604, 370968, 377364, 420906, 533832, 561208, 754728, 841812, 911963, 1683624, 1823926, 2735889, 3647852, 5471778, 7295704, 10943556, 21887112]

約数ペア:

[(1, 21887112), (2, 10943556), (3, 7295704), (4, 5471778), (6, 3647852), (8, 2735889), (12, 1823926), (13, 1683624), (24, 911963), (26, 841812), (29, 754728), (39, 561208), (41, 533832), (52, 420906), (58, 377364), (59, 370968), (78, 280604), (82, 266916), (87, 251576), (104, 210453), (116, 188682), (118, 185484), (123, 177944), (156, 140302), (164, 133458), (174, 125788), (177, 123656), (232, 94341), (236, 92742), (246, 88972), (312, 70151), (328, 66729), (348, 62894), (354, 61828), (377, 58056), (472, 46371), (492, 44486), (533, 41064), (696, 31447), (708, 30914), (754, 29028), (767, 28536), (984, 22243), (1066, 20532), (1131, 19352), (1189, 18408), (1416, 15457), (1508, 14514), (1534, 14268), (1599, 13688), (1711, 12792), (2132, 10266), (2262, 9676), (2301, 9512), (2378, 9204), (2419, 9048), (3016, 7257), (3068, 7134), (3198, 6844), (3422, 6396), (3567, 6136), (4264, 5133), (4524, 4838), (4602, 4756)]