21876316

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^3\times {\mathrm{587}}^1$

素因数の和:631

約数の個数: 48

約数和(自身を含む): 48206592

約数和(自身を除く): 26330276

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 121, 154, 242, 308, 484, 587, 847, 1174, 1331, 1694, 2348, 2662, 3388, 4109, 5324, 6457, 8218, 9317, 12914, 16436, 18634, 25828, 37268, 45199, 71027, 90398, 142054, 180796, 284108, 497189, 781297, 994378, 1562594, 1988756, 3125188, 5469079, 10938158, 21876316]

約数ペア:

[(1, 21876316), (2, 10938158), (4, 5469079), (7, 3125188), (11, 1988756), (14, 1562594), (22, 994378), (28, 781297), (44, 497189), (77, 284108), (121, 180796), (154, 142054), (242, 90398), (308, 71027), (484, 45199), (587, 37268), (847, 25828), (1174, 18634), (1331, 16436), (1694, 12914), (2348, 9317), (2662, 8218), (3388, 6457), (4109, 5324)]