20381744

素因数分解:

$2^4\times {\mathrm{557}}^1\times {\mathrm{2287}}^1$

素因数の和:2852

約数の個数: 20

約数和(自身を含む): 39577824

約数和(自身を除く): 19196080

約数列:

[1, 2, 4, 8, 16, 557, 1114, 2228, 2287, 4456, 4574, 8912, 9148, 18296, 36592, 1273859, 2547718, 5095436, 10190872, 20381744]

約数ペア:

[(1, 20381744), (2, 10190872), (4, 5095436), (8, 2547718), (16, 1273859), (557, 36592), (1114, 18296), (2228, 9148), (2287, 8912), (4456, 4574)]