128781507

素因数分解:

$3^1\times {\mathrm{137}}^1\times {\mathrm{431}}^1\times {\mathrm{727}}^1$

素因数の和:1298

約数の個数: 16

約数和(自身を含む): 173601792

約数和(自身を除く): 44820285

約数列:

[1, 3, 137, 411, 431, 727, 1293, 2181, 59047, 99599, 177141, 298797, 313337, 940011, 42927169, 128781507]

約数ペア:

[(1, 128781507), (3, 42927169), (137, 940011), (411, 313337), (431, 298797), (727, 177141), (1293, 99599), (2181, 59047)]