21646729

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{2389}}^1$

素因数の和:2460

約数の個数: 16

約数和(自身を含む): 25295760

約数和(自身を除く): 3649031

約数列:

[1, 13, 17, 41, 221, 533, 697, 2389, 9061, 31057, 40613, 97949, 527969, 1273337, 1665133, 21646729]

約数ペア:

[(1, 21646729), (13, 1665133), (17, 1273337), (41, 527969), (221, 97949), (533, 40613), (697, 31057), (2389, 9061)]