21423689

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{4391}}^1$

素因数の和:4456

約数の個数: 16

約数和(自身を含む): 26562816

約数和(自身を除く): 5139127

約数列:

[1, 7, 17, 41, 119, 287, 697, 4391, 4879, 30737, 74647, 180031, 522529, 1260217, 3060527, 21423689]

約数ペア:

[(1, 21423689), (7, 3060527), (17, 1260217), (41, 522529), (119, 180031), (287, 74647), (697, 30737), (4391, 4879)]