20180237

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{1913}}^1$

素因数の和:2068

約数の個数: 16

約数和(自身を含む): 25356672

約数和(自身を除く): 5176435

約数列:

[1, 7, 11, 77, 137, 959, 1507, 1913, 10549, 13391, 21043, 147301, 262081, 1834567, 2882891, 20180237]

約数ペア:

[(1, 20180237), (7, 2882891), (11, 1834567), (77, 262081), (137, 147301), (959, 21043), (1507, 13391), (1913, 10549)]