87021221

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{311}}^1\times {\mathrm{563}}^1$

素因数の和:952

約数の個数: 16

約数和(自身を含む): 101357568

約数和(自身を除く): 14336347

約数列:

[1, 7, 71, 311, 497, 563, 2177, 3941, 22081, 39973, 154567, 175093, 279811, 1225651, 12431603, 87021221]

約数ペア:

[(1, 87021221), (7, 12431603), (71, 1225651), (311, 279811), (497, 175093), (563, 154567), (2177, 39973), (3941, 22081)]