20848555

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{45821}}^1$

素因数の和:45846

約数の個数: 16

約数和(自身を含む): 30792384

約数和(自身を除く): 9943829

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 45821, 229105, 320747, 595673, 1603735, 2978365, 4169711, 20848555]

約数ペア:

[(1, 20848555), (5, 4169711), (7, 2978365), (13, 1603735), (35, 595673), (65, 320747), (91, 229105), (455, 45821)]