21470410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{521}}^1$

素因数の和:858

約数の個数: 32

約数和(自身を含む): 41830992

約数和(自身を除く): 20360582

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 317, 521, 634, 1042, 1585, 2605, 3170, 4121, 5210, 6773, 8242, 13546, 20605, 33865, 41210, 67730, 165157, 330314, 825785, 1651570, 2147041, 4294082, 10735205, 21470410]

約数ペア:

[(1, 21470410), (2, 10735205), (5, 4294082), (10, 2147041), (13, 1651570), (26, 825785), (65, 330314), (130, 165157), (317, 67730), (521, 41210), (634, 33865), (1042, 20605), (1585, 13546), (2605, 8242), (3170, 6773), (4121, 5210)]