78312031

素因数分解:

$7^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1\times {\mathrm{521}}^1$

素因数の和:834

約数の個数: 16

約数和(自身を含む): 90953280

約数和(自身を除く): 12641249

約数列:

[1, 7, 109, 197, 521, 763, 1379, 3647, 21473, 56789, 102637, 150311, 397523, 718459, 11187433, 78312031]

約数ペア:

[(1, 78312031), (7, 11187433), (109, 718459), (197, 397523), (521, 150311), (763, 102637), (1379, 56789), (3647, 21473)]