31220651

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{2917}}^1$

素因数の和:3074

約数の個数: 16

約数和(自身を含む): 39217920

約数和(自身を除く): 7997269

約数列:

[1, 7, 11, 77, 139, 973, 1529, 2917, 10703, 20419, 32087, 224609, 405463, 2838241, 4460093, 31220651]

約数ペア:

[(1, 31220651), (7, 4460093), (11, 2838241), (77, 405463), (139, 224609), (973, 32087), (1529, 20419), (2917, 10703)]