21297644

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{953}}^1$

素因数の和:1145

約数の個数: 24

約数和(自身を含む): 38572128

約数和(自身を除く): 17274484

約数列:

[1, 2, 4, 37, 74, 148, 151, 302, 604, 953, 1906, 3812, 5587, 11174, 22348, 35261, 70522, 141044, 143903, 287806, 575612, 5324411, 10648822, 21297644]

約数ペア:

[(1, 21297644), (2, 10648822), (4, 5324411), (37, 575612), (74, 287806), (148, 143903), (151, 141044), (302, 70522), (604, 35261), (953, 22348), (1906, 11174), (3812, 5587)]