31881874

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{1571}}^1$

素因数の和:1785

約数の個数: 16

約数和(自身を含む): 48857760

約数和(自身を除く): 16975886

約数列:

[1, 2, 73, 139, 146, 278, 1571, 3142, 10147, 20294, 114683, 218369, 229366, 436738, 15940937, 31881874]

約数ペア:

[(1, 31881874), (2, 15940937), (73, 436738), (139, 229366), (146, 218369), (278, 114683), (1571, 20294), (3142, 10147)]