66879617

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1\times {\mathrm{991}}^1$

素因数の和:1340

約数の個数: 16

約数和(自身を含む): 79233024

約数和(自身を除く): 12353407

約数列:

[1, 7, 31, 217, 311, 991, 2177, 6937, 9641, 30721, 67487, 215047, 308201, 2157407, 9554231, 66879617]

約数ペア:

[(1, 66879617), (7, 9554231), (31, 2157407), (217, 308201), (311, 215047), (991, 67487), (2177, 30721), (6937, 9641)]