261388738

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{529127}}^1$

素因数の和:529161

約数の個数: 16

約数和(自身を含む): 444467520

約数和(自身を除く): 183078782

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 529127, 1058254, 6878651, 10053413, 13757302, 20106826, 130694369, 261388738]

約数ペア:

[(1, 261388738), (2, 130694369), (13, 20106826), (19, 13757302), (26, 10053413), (38, 6878651), (247, 1058254), (494, 529127)]