21290652

素因数分解:

$2^2\times 3^2\times {\mathrm{591407}}^1$

素因数の和:591417

約数の個数: 18

約数和(自身を含む): 53818128

約数和(自身を除く): 32527476

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 591407, 1182814, 1774221, 2365628, 3548442, 5322663, 7096884, 10645326, 21290652]

約数ペア:

[(1, 21290652), (2, 10645326), (3, 7096884), (4, 5322663), (6, 3548442), (9, 2365628), (12, 1774221), (18, 1182814), (36, 591407)]