21618531

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1571}}^1$

素因数の和:1727

約数の個数: 24

約数和(自身を含む): 34332480

約数和(自身を除く): 12713949

約数列:

[1, 3, 9, 11, 33, 99, 139, 417, 1251, 1529, 1571, 4587, 4713, 13761, 14139, 17281, 51843, 155529, 218369, 655107, 1965321, 2402059, 7206177, 21618531]

約数ペア:

[(1, 21618531), (3, 7206177), (9, 2402059), (11, 1965321), (33, 655107), (99, 218369), (139, 155529), (417, 51843), (1251, 17281), (1529, 14139), (1571, 13761), (4587, 4713)]