20469865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{7681}}^1$

素因数の和:7740

約数の個数: 16

約数和(自身を含む): 27102096

約数和(自身を除く): 6632231

約数列:

[1, 5, 13, 41, 65, 205, 533, 2665, 7681, 38405, 99853, 314921, 499265, 1574605, 4093973, 20469865]

約数ペア:

[(1, 20469865), (5, 4093973), (13, 1574605), (41, 499265), (65, 314921), (205, 99853), (533, 38405), (2665, 7681)]