21927477

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{647}}^1$

素因数の和:753

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 12909003

約数列:

[1, 3, 11, 13, 33, 39, 79, 143, 237, 429, 647, 869, 1027, 1941, 2607, 3081, 7117, 8411, 11297, 21351, 25233, 33891, 51113, 92521, 153339, 277563, 562243, 664469, 1686729, 1993407, 7309159, 21927477]

約数ペア:

[(1, 21927477), (3, 7309159), (11, 1993407), (13, 1686729), (33, 664469), (39, 562243), (79, 277563), (143, 153339), (237, 92521), (429, 51113), (647, 33891), (869, 25233), (1027, 21351), (1941, 11297), (2607, 8411), (3081, 7117)]