81913023

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{1999}}^1$

素因数の和:2191

約数の個数: 24

約数和(自身を含む): 123240000

約数和(自身を除く): 41326977

約数列:

[1, 3, 9, 29, 87, 157, 261, 471, 1413, 1999, 4553, 5997, 13659, 17991, 40977, 57971, 173913, 313843, 521739, 941529, 2824587, 9101447, 27304341, 81913023]

約数ペア:

[(1, 81913023), (3, 27304341), (9, 9101447), (29, 2824587), (87, 941529), (157, 521739), (261, 313843), (471, 173913), (1413, 57971), (1999, 40977), (4553, 17991), (5997, 13659)]