21351700

素因数分解:

$2^2\times 5^2\times {\mathrm{149}}^1\times {\mathrm{1433}}^1$

素因数の和:1596

約数の個数: 36

約数和(自身を含む): 46676700

約数和(自身を除く): 25325000

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 149, 298, 596, 745, 1433, 1490, 2866, 2980, 3725, 5732, 7165, 7450, 14330, 14900, 28660, 35825, 71650, 143300, 213517, 427034, 854068, 1067585, 2135170, 4270340, 5337925, 10675850, 21351700]

約数ペア:

[(1, 21351700), (2, 10675850), (4, 5337925), (5, 4270340), (10, 2135170), (20, 1067585), (25, 854068), (50, 427034), (100, 213517), (149, 143300), (298, 71650), (596, 35825), (745, 28660), (1433, 14900), (1490, 14330), (2866, 7450), (2980, 7165), (3725, 5732)]