21099687076

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{82657}}^1\times {\mathrm{4909}}^1$

素因数の和:87583

約数の個数: 24

約数和(自身を含む): 39773376440

約数和(自身を除く): 18673689364

約数列:

[1, 2, 4, 13, 26, 52, 4909, 9818, 19636, 63817, 82657, 127634, 165314, 255268, 330628, 1074541, 2149082, 4298164, 405763213, 811526426, 1623052852, 5274921769, 10549843538, 21099687076]

約数ペア:

[(1, 21099687076), (2, 10549843538), (4, 5274921769), (13, 1623052852), (26, 811526426), (52, 405763213), (4909, 4298164), (9818, 2149082), (19636, 1074541), (63817, 330628), (82657, 255268), (127634, 165314)]