20089121

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{90901}}^1$

素因数の和:90931

約数の個数: 8

約数和(自身を含む): 22907304

約数和(自身を除く): 2818183

約数列:

[1, 13, 17, 221, 90901, 1181713, 1545317, 20089121]

約数ペア:

[(1, 20089121), (13, 1545317), (17, 1181713), (221, 90901)]