21360408

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{337}}^1$

素因数の和:504

約数の個数: 64

約数和(自身を含む): 56784000

約数和(自身を除く): 35423592

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 139, 152, 228, 278, 337, 417, 456, 556, 674, 834, 1011, 1112, 1348, 1668, 2022, 2641, 2696, 3336, 4044, 5282, 6403, 7923, 8088, 10564, 12806, 15846, 19209, 21128, 25612, 31692, 38418, 46843, 51224, 63384, 76836, 93686, 140529, 153672, 187372, 281058, 374744, 562116, 890017, 1124232, 1780034, 2670051, 3560068, 5340102, 7120136, 10680204, 21360408]

約数ペア:

[(1, 21360408), (2, 10680204), (3, 7120136), (4, 5340102), (6, 3560068), (8, 2670051), (12, 1780034), (19, 1124232), (24, 890017), (38, 562116), (57, 374744), (76, 281058), (114, 187372), (139, 153672), (152, 140529), (228, 93686), (278, 76836), (337, 63384), (417, 51224), (456, 46843), (556, 38418), (674, 31692), (834, 25612), (1011, 21128), (1112, 19209), (1348, 15846), (1668, 12806), (2022, 10564), (2641, 8088), (2696, 7923), (3336, 6403), (4044, 5282)]