20137865

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{1303}}^1$

素因数の和:1600

約数の個数: 16

約数和(自身を含む): 26476416

約数和(自身を除く): 6338551

約数列:

[1, 5, 11, 55, 281, 1303, 1405, 3091, 6515, 14333, 15455, 71665, 366143, 1830715, 4027573, 20137865]

約数ペア:

[(1, 20137865), (5, 4027573), (11, 1830715), (55, 366143), (281, 71665), (1303, 15455), (1405, 14333), (3091, 6515)]