21921317

素因数分解:

${\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{389}}^1$

素因数の和:556

約数の個数: 16

約数和(自身を含む): 24710400

約数和(自身を除く): 2789083

約数列:

[1, 11, 47, 109, 389, 517, 1199, 4279, 5123, 18283, 42401, 56353, 201113, 466411, 1992847, 21921317]

約数ペア:

[(1, 21921317), (11, 1992847), (47, 466411), (109, 201113), (389, 56353), (517, 42401), (1199, 18283), (4279, 5123)]