21280866786

素因数分解:

$2^1\times 3^2\times {\mathrm{821}}^1\times {\mathrm{1440037}}^1$

素因数の和:1440866

約数の個数: 24

約数和(自身を含む): 46164738204

約数和(自身を除く): 24883871418

約数列:

[1, 2, 3, 6, 9, 18, 821, 1642, 2463, 4926, 7389, 14778, 1440037, 2880074, 4320111, 8640222, 12960333, 25920666, 1182270377, 2364540754, 3546811131, 7093622262, 10640433393, 21280866786]

約数ペア:

[(1, 21280866786), (2, 10640433393), (3, 7093622262), (6, 3546811131), (9, 2364540754), (18, 1182270377), (821, 25920666), (1642, 12960333), (2463, 8640222), (4926, 4320111), (7389, 2880074), (14778, 1440037)]