20165981

素因数分解:

${\mathrm{11}}^3\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:281

約数の個数: 16

約数和(自身を含む): 22545600

約数和(自身を除く): 2379619

約数列:

[1, 11, 109, 121, 139, 1199, 1331, 1529, 13189, 15151, 16819, 145079, 166661, 185009, 1833271, 20165981]

約数ペア:

[(1, 20165981), (11, 1833271), (109, 185009), (121, 166661), (139, 145079), (1199, 16819), (1331, 15151), (1529, 13189)]