8201781

素因数分解:

$3^2\times 7^1\times {\mathrm{211}}^1\times {\mathrm{617}}^1$

素因数の和:841

約数の個数: 24

約数和(自身を含む): 13625664

約数和(自身を除く): 5423883

約数列:

[1, 3, 7, 9, 21, 63, 211, 617, 633, 1477, 1851, 1899, 4319, 4431, 5553, 12957, 13293, 38871, 130187, 390561, 911309, 1171683, 2733927, 8201781]

約数ペア:

[(1, 8201781), (3, 2733927), (7, 1171683), (9, 911309), (21, 390561), (63, 130187), (211, 38871), (617, 13293), (633, 12957), (1477, 5553), (1851, 4431), (1899, 4319)]