28159665

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{193}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 46262016

約数和(自身を除く): 18102351

約数列:

[1, 3, 5, 15, 71, 137, 193, 213, 355, 411, 579, 685, 965, 1065, 2055, 2895, 9727, 13703, 26441, 29181, 41109, 48635, 68515, 79323, 132205, 145905, 205545, 396615, 1877311, 5631933, 9386555, 28159665]

約数ペア:

[(1, 28159665), (3, 9386555), (5, 5631933), (15, 1877311), (71, 396615), (137, 205545), (193, 145905), (213, 132205), (355, 79323), (411, 68515), (579, 48635), (685, 41109), (965, 29181), (1065, 26441), (2055, 13703), (2895, 9727)]