219976991

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3329}}^1$

素因数の和:3395

約数の個数: 24

約数和(自身を含む): 263256480

約数和(自身を除く): 43279489

約数列:

[1, 13, 17, 23, 169, 221, 299, 391, 2873, 3329, 3887, 5083, 43277, 56593, 66079, 76567, 562601, 735709, 995371, 1301639, 9564217, 12939823, 16921307, 219976991]

約数ペア:

[(1, 219976991), (13, 16921307), (17, 12939823), (23, 9564217), (169, 1301639), (221, 995371), (299, 735709), (391, 562601), (2873, 76567), (3329, 66079), (3887, 56593), (5083, 43277)]