290894919

素因数分解:

$3^1\times 7^2\times {\mathrm{1978877}}^1$

素因数の和:1978894

約数の個数: 12

約数和(自身を含む): 451184184

約数和(自身を除く): 160289265

約数列:

[1, 3, 7, 21, 49, 147, 1978877, 5936631, 13852139, 41556417, 96964973, 290894919]

約数ペア:

[(1, 290894919), (3, 96964973), (7, 41556417), (21, 13852139), (49, 5936631), (147, 1978877)]