1987788887

素因数分解:

$7^1\times {\mathrm{127}}^1\times {\mathrm{283}}^1\times {\mathrm{7901}}^1$

素因数の和:8318

約数の個数: 16

約数和(自身を含む): 2298028032

約数和(自身を除く): 310239145

約数列:

[1, 7, 127, 283, 889, 1981, 7901, 35941, 55307, 251587, 1003427, 2235983, 7023989, 15651881, 283969841, 1987788887]

約数ペア:

[(1, 1987788887), (7, 283969841), (127, 15651881), (283, 7023989), (889, 2235983), (1981, 1003427), (7901, 251587), (35941, 55307)]