18688628

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{35129}}^1$

素因数の和:35159

約数の個数: 24

約数和(自身を含む): 39345600

約数和(自身を除く): 20656972

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 35129, 70258, 140516, 245903, 491806, 667451, 983612, 1334902, 2669804, 4672157, 9344314, 18688628]

約数ペア:

[(1, 18688628), (2, 9344314), (4, 4672157), (7, 2669804), (14, 1334902), (19, 983612), (28, 667451), (38, 491806), (76, 245903), (133, 140516), (266, 70258), (532, 35129)]