21392406

素因数分解:

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

素因数の和:198

約数の個数: 72

約数和(自身を含む): 54832752

約数和(自身を除く): 33440346

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 41, 42, 63, 82, 101, 123, 126, 202, 246, 287, 303, 369, 574, 606, 707, 738, 861, 909, 1414, 1681, 1722, 1818, 2121, 2583, 3362, 4141, 4242, 5043, 5166, 6363, 8282, 10086, 11767, 12423, 12726, 15129, 23534, 24846, 28987, 30258, 35301, 37269, 57974, 70602, 74538, 86961, 105903, 169781, 173922, 211806, 260883, 339562, 509343, 521766, 1018686, 1188467, 1528029, 2376934, 3056058, 3565401, 7130802, 10696203, 21392406]

約数ペア:

[(1, 21392406), (2, 10696203), (3, 7130802), (6, 3565401), (7, 3056058), (9, 2376934), (14, 1528029), (18, 1188467), (21, 1018686), (41, 521766), (42, 509343), (63, 339562), (82, 260883), (101, 211806), (123, 173922), (126, 169781), (202, 105903), (246, 86961), (287, 74538), (303, 70602), (369, 57974), (574, 37269), (606, 35301), (707, 30258), (738, 28987), (861, 24846), (909, 23534), (1414, 15129), (1681, 12726), (1722, 12423), (1818, 11767), (2121, 10086), (2583, 8282), (3362, 6363), (4141, 5166), (4242, 5043)]