68686891

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{10631}}^1$

素因数の和:10722

約数の個数: 16

約数和(自身を含む): 85736448

約数和(自身を除く): 17049557

約数列:

[1, 7, 13, 71, 91, 497, 923, 6461, 10631, 74417, 138203, 754801, 967421, 5283607, 9812413, 68686891]

約数ペア:

[(1, 68686891), (7, 9812413), (13, 5283607), (71, 967421), (91, 754801), (497, 138203), (923, 74417), (6461, 10631)]