51390207

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{421}}^1$

素因数の和:581

約数の個数: 40

約数和(自身を含む): 84558672

約数和(自身を除く): 33168465

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 137, 297, 411, 421, 891, 1233, 1263, 1507, 3699, 3789, 4521, 4631, 11097, 11367, 13563, 13893, 34101, 40689, 41679, 57677, 122067, 125037, 173031, 375111, 519093, 634447, 1557279, 1903341, 4671837, 5710023, 17130069, 51390207]

約数ペア:

[(1, 51390207), (3, 17130069), (9, 5710023), (11, 4671837), (27, 1903341), (33, 1557279), (81, 634447), (99, 519093), (137, 375111), (297, 173031), (411, 125037), (421, 122067), (891, 57677), (1233, 41679), (1263, 40689), (1507, 34101), (3699, 13893), (3789, 13563), (4521, 11367), (4631, 11097)]