21218484

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:217

約数の個数: 96

約数和(自身を含む): 59496192

約数和(自身を除く): 38277708

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 41, 42, 61, 82, 84, 101, 122, 123, 164, 183, 202, 244, 246, 287, 303, 366, 404, 427, 492, 574, 606, 707, 732, 854, 861, 1148, 1212, 1281, 1414, 1708, 1722, 2121, 2501, 2562, 2828, 3444, 4141, 4242, 5002, 5124, 6161, 7503, 8282, 8484, 10004, 12322, 12423, 15006, 16564, 17507, 18483, 24644, 24846, 28987, 30012, 35014, 36966, 43127, 49692, 52521, 57974, 70028, 73932, 86254, 86961, 105042, 115948, 129381, 172508, 173922, 210084, 252601, 258762, 347844, 505202, 517524, 757803, 1010404, 1515606, 1768207, 3031212, 3536414, 5304621, 7072828, 10609242, 21218484]

約数ペア:

[(1, 21218484), (2, 10609242), (3, 7072828), (4, 5304621), (6, 3536414), (7, 3031212), (12, 1768207), (14, 1515606), (21, 1010404), (28, 757803), (41, 517524), (42, 505202), (61, 347844), (82, 258762), (84, 252601), (101, 210084), (122, 173922), (123, 172508), (164, 129381), (183, 115948), (202, 105042), (244, 86961), (246, 86254), (287, 73932), (303, 70028), (366, 57974), (404, 52521), (427, 49692), (492, 43127), (574, 36966), (606, 35014), (707, 30012), (732, 28987), (854, 24846), (861, 24644), (1148, 18483), (1212, 17507), (1281, 16564), (1414, 15006), (1708, 12423), (1722, 12322), (2121, 10004), (2501, 8484), (2562, 8282), (2828, 7503), (3444, 6161), (4141, 5124), (4242, 5002)]