21964605

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1543}}^1$

素因数の和:1637

約数の個数: 32

約数和(自身を含む): 38390016

約数和(自身を除く): 16425411

約数列:

[1, 3, 5, 13, 15, 39, 65, 73, 195, 219, 365, 949, 1095, 1543, 2847, 4629, 4745, 7715, 14235, 20059, 23145, 60177, 100295, 112639, 300885, 337917, 563195, 1464307, 1689585, 4392921, 7321535, 21964605]

約数ペア:

[(1, 21964605), (3, 7321535), (5, 4392921), (13, 1689585), (15, 1464307), (39, 563195), (65, 337917), (73, 300885), (195, 112639), (219, 100295), (365, 60177), (949, 23145), (1095, 20059), (1543, 14235), (2847, 7715), (4629, 4745)]