201991127

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{6977}}^1$

素因数の和:7138

約数の個数: 16

約数和(自身を含む): 232116192

約数和(自身を除く): 30125065

約数列:

[1, 13, 17, 131, 221, 1703, 2227, 6977, 28951, 90701, 118609, 913987, 1541917, 11881831, 15537779, 201991127]

約数ペア:

[(1, 201991127), (13, 15537779), (17, 11881831), (131, 1541917), (221, 913987), (1703, 118609), (2227, 90701), (6977, 28951)]