21791367

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{14327}}^1$

素因数の和:14359

約数の個数: 18

約数和(自身を含む): 34086312

約数和(自身を除く): 12294945

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 14327, 42981, 128943, 186251, 558753, 1676259, 2421263, 7263789, 21791367]

約数ペア:

[(1, 21791367), (3, 7263789), (9, 2421263), (13, 1676259), (39, 558753), (117, 186251), (169, 128943), (507, 42981), (1521, 14327)]