21580710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{811}}^1\times {\mathrm{887}}^1$

素因数の和:1708

約数の個数: 32

約数和(自身を含む): 51916032

約数和(自身を除く): 30335322

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 811, 887, 1622, 1774, 2433, 2661, 4055, 4435, 4866, 5322, 8110, 8870, 12165, 13305, 24330, 26610, 719357, 1438714, 2158071, 3596785, 4316142, 7193570, 10790355, 21580710]

約数ペア:

[(1, 21580710), (2, 10790355), (3, 7193570), (5, 4316142), (6, 3596785), (10, 2158071), (15, 1438714), (30, 719357), (811, 26610), (887, 24330), (1622, 13305), (1774, 12165), (2433, 8870), (2661, 8110), (4055, 5322), (4435, 4866)]