20399841

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29437}}^1$

素因数の和:29461

約数の個数: 24

約数和(自身を含む): 36738624

約数和(自身を除く): 16338783

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 29437, 88311, 206059, 264933, 323807, 618177, 971421, 1854531, 2266649, 2914263, 6799947, 20399841]

約数ペア:

[(1, 20399841), (3, 6799947), (7, 2914263), (9, 2266649), (11, 1854531), (21, 971421), (33, 618177), (63, 323807), (77, 264933), (99, 206059), (231, 88311), (693, 29437)]