20438795

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{821}}^1$

素因数の和:1222

約数の個数: 16

約数和(自身を含む): 26514432

約数和(自身を除く): 6075637

約数列:

[1, 5, 13, 65, 383, 821, 1915, 4105, 4979, 10673, 24895, 53365, 314443, 1572215, 4087759, 20438795]

約数ペア:

[(1, 20438795), (5, 4087759), (13, 1572215), (65, 314443), (383, 53365), (821, 24895), (1915, 10673), (4105, 4979)]