20118812

素因数分解:

$2^2\times 7^2\times {\mathrm{102647}}^1$

素因数の和:102665

約数の個数: 18

約数和(自身を含む): 40956552

約数和(自身を除く): 20837740

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 102647, 205294, 410588, 718529, 1437058, 2874116, 5029703, 10059406, 20118812]

約数ペア:

[(1, 20118812), (2, 10059406), (4, 5029703), (7, 2874116), (14, 1437058), (28, 718529), (49, 410588), (98, 205294), (196, 102647)]