20013913

素因数分解:

${\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{229}}^1$

素因数の和:396

約数の個数: 16

約数和(自身を含む): 21908880

約数和(自身を除く): 1894967

約数列:

[1, 17, 53, 97, 229, 901, 1649, 3893, 5141, 12137, 22213, 87397, 206329, 377621, 1177289, 20013913]

約数ペア:

[(1, 20013913), (17, 1177289), (53, 377621), (97, 206329), (229, 87397), (901, 22213), (1649, 12137), (3893, 5141)]