3978891

素因数分解:

$3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{461}}^1$

素因数の和:611

約数の個数: 24

約数和(自身を含む): 6630624

約数和(自身を除く): 2651733

約数列:

[1, 3, 7, 9, 21, 63, 137, 411, 461, 959, 1233, 1383, 2877, 3227, 4149, 8631, 9681, 29043, 63157, 189471, 442099, 568413, 1326297, 3978891]

約数ペア:

[(1, 3978891), (3, 1326297), (7, 568413), (9, 442099), (21, 189471), (63, 63157), (137, 29043), (411, 9681), (461, 8631), (959, 4149), (1233, 3227), (1383, 2877)]