21621645

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{10223}}^1$

素因数の和:10281

約数の個数: 24

約数和(自身を含む): 38278656

約数和(自身を除く): 16657011

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 10223, 30669, 51115, 92007, 153345, 460035, 480481, 1441443, 2402405, 4324329, 7207215, 21621645]

約数ペア:

[(1, 21621645), (3, 7207215), (5, 4324329), (9, 2402405), (15, 1441443), (45, 480481), (47, 460035), (141, 153345), (235, 92007), (423, 51115), (705, 30669), (2115, 10223)]