81109931

素因数分解:

$7^1\times {\mathrm{41}}^2\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:263

約数の個数: 24

約数和(自身を含む): 97425312

約数和(自身を除く): 16315381

約数列:

[1, 7, 41, 61, 113, 287, 427, 791, 1681, 2501, 4633, 6893, 11767, 17507, 32431, 48251, 102541, 189953, 282613, 717787, 1329671, 1978291, 11587133, 81109931]

約数ペア:

[(1, 81109931), (7, 11587133), (41, 1978291), (61, 1329671), (113, 717787), (287, 282613), (427, 189953), (791, 102541), (1681, 48251), (2501, 32431), (4633, 17507), (6893, 11767)]