123784531

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{311}}^1\times {\mathrm{1801}}^1$

素因数の和:2142

約数の個数: 16

約数和(自身を含む): 141680448

約数和(自身を除く): 17895917

約数列:

[1, 13, 17, 221, 311, 1801, 4043, 5287, 23413, 30617, 68731, 398021, 560111, 7281443, 9521887, 123784531]

約数ペア:

[(1, 123784531), (13, 9521887), (17, 7281443), (221, 560111), (311, 398021), (1801, 68731), (4043, 30617), (5287, 23413)]