81101891

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{1637}}^1$

素因数の和:1790

約数の個数: 16

約数和(自身を含む): 90627264

約数和(自身を除く): 9525373

約数列:

[1, 13, 37, 103, 481, 1339, 1637, 3811, 21281, 49543, 60569, 168611, 787397, 2191943, 6238607, 81101891]

約数ペア:

[(1, 81101891), (13, 6238607), (37, 2191943), (103, 787397), (481, 168611), (1339, 60569), (1637, 49543), (3811, 21281)]