40671981

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{28069}}^1$

素因数の和:28105

約数の個数: 24

約数和(自身を含む): 70062720

約数和(自身を除く): 29390739

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 28069, 84207, 196483, 252621, 589449, 645587, 1768347, 1936761, 4519109, 5810283, 13557327, 40671981]

約数ペア:

[(1, 40671981), (3, 13557327), (7, 5810283), (9, 4519109), (21, 1936761), (23, 1768347), (63, 645587), (69, 589449), (161, 252621), (207, 196483), (483, 84207), (1449, 28069)]