20617499

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1621}}^1$

素因数の和:1730

約数の個数: 16

約数和(自身を含む): 24913920

約数和(自身を除く): 4296421

約数列:

[1, 7, 23, 79, 161, 553, 1621, 1817, 11347, 12719, 37283, 128059, 260981, 896413, 2945357, 20617499]

約数ペア:

[(1, 20617499), (7, 2945357), (23, 896413), (79, 260981), (161, 128059), (553, 37283), (1621, 12719), (1817, 11347)]