21274089

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{3001}}^1$

素因数の和:3160

約数の個数: 16

約数和(自身を含む): 30260160

約数和(自身を除く): 8986071

約数列:

[1, 3, 17, 51, 139, 417, 2363, 3001, 7089, 9003, 51017, 153051, 417139, 1251417, 7091363, 21274089]

約数ペア:

[(1, 21274089), (3, 7091363), (17, 1251417), (51, 417139), (139, 153051), (417, 51017), (2363, 9003), (3001, 7089)]