18711235

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{3001}}^1$

素因数の和:3078

約数の個数: 16

約数和(自身を含む): 23775840

約数和(自身を除く): 5064605

約数列:

[1, 5, 29, 43, 145, 215, 1247, 3001, 6235, 15005, 87029, 129043, 435145, 645215, 3742247, 18711235]

約数ペア:

[(1, 18711235), (5, 3742247), (29, 645215), (43, 435145), (145, 129043), (215, 87029), (1247, 15005), (3001, 6235)]