21210605

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{1823}}^1$

素因数の和:2020

約数の個数: 16

約数和(自身を含む): 27578880

約数和(自身を除く): 6368275

約数列:

[1, 5, 13, 65, 179, 895, 1823, 2327, 9115, 11635, 23699, 118495, 326317, 1631585, 4242121, 21210605]

約数ペア:

[(1, 21210605), (5, 4242121), (13, 1631585), (65, 326317), (179, 118495), (895, 23699), (1823, 11635), (2327, 9115)]