18540758

素因数分解:

$2^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1\times {\mathrm{431}}^1$

素因数の和:727

約数の個数: 16

約数和(自身を含む): 28257984

約数和(自身を除く): 9717226

約数列:

[1, 2, 137, 157, 274, 314, 431, 862, 21509, 43018, 59047, 67667, 118094, 135334, 9270379, 18540758]

約数ペア:

[(1, 18540758), (2, 9270379), (137, 135334), (157, 118094), (274, 67667), (314, 59047), (431, 43018), (862, 21509)]