81888339

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1\times {\mathrm{229}}^1$

素因数の和:471

約数の個数: 32

約数和(自身を含む): 121020480

約数和(自身を除く): 39132141

約数列:

[1, 3, 13, 39, 53, 159, 173, 229, 519, 687, 689, 2067, 2249, 2977, 6747, 8931, 9169, 12137, 27507, 36411, 39617, 118851, 119197, 157781, 357591, 473343, 515021, 1545063, 2099701, 6299103, 27296113, 81888339]

約数ペア:

[(1, 81888339), (3, 27296113), (13, 6299103), (39, 2099701), (53, 1545063), (159, 515021), (173, 473343), (229, 357591), (519, 157781), (687, 119197), (689, 118851), (2067, 39617), (2249, 36411), (2977, 27507), (6747, 12137), (8931, 9169)]