21064030

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{521}}^1$

素因数の和:852

約数の個数: 32

約数和(自身を含む): 41041728

約数和(自身を除く): 19977698

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 311, 521, 622, 1042, 1555, 2605, 3110, 4043, 5210, 6773, 8086, 13546, 20215, 33865, 40430, 67730, 162031, 324062, 810155, 1620310, 2106403, 4212806, 10532015, 21064030]

約数ペア:

[(1, 21064030), (2, 10532015), (5, 4212806), (10, 2106403), (13, 1620310), (26, 810155), (65, 324062), (130, 162031), (311, 67730), (521, 40430), (622, 33865), (1042, 20215), (1555, 13546), (2605, 8086), (3110, 6773), (4043, 5210)]