21240401

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{2311}}^1$

素因数の和:2432

約数の個数: 16

約数和(自身を含む): 26412288

約数和(自身を除く): 5171887

約数列:

[1, 7, 13, 91, 101, 707, 1313, 2311, 9191, 16177, 30043, 210301, 233411, 1633877, 3034343, 21240401]

約数ペア:

[(1, 21240401), (7, 3034343), (13, 1633877), (91, 233411), (101, 210301), (707, 30043), (1313, 16177), (2311, 9191)]