21804990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{563}}^1\times {\mathrm{1291}}^1$

素因数の和:1864

約数の個数: 32

約数和(自身を含む): 52465536

約数和(自身を除く): 30660546

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 563, 1126, 1291, 1689, 2582, 2815, 3378, 3873, 5630, 6455, 7746, 8445, 12910, 16890, 19365, 38730, 726833, 1453666, 2180499, 3634165, 4360998, 7268330, 10902495, 21804990]

約数ペア:

[(1, 21804990), (2, 10902495), (3, 7268330), (5, 4360998), (6, 3634165), (10, 2180499), (15, 1453666), (30, 726833), (563, 38730), (1126, 19365), (1291, 16890), (1689, 12910), (2582, 8445), (2815, 7746), (3378, 6455), (3873, 5630)]