21303081

素因数分解:

$3^5\times {\mathrm{29}}^1\times {\mathrm{3023}}^1$

素因数の和:3067

約数の個数: 24

約数和(自身を含む): 33022080

約数和(自身を除く): 11718999

約数列:

[1, 3, 9, 27, 29, 81, 87, 243, 261, 783, 2349, 3023, 7047, 9069, 27207, 81621, 87667, 244863, 263001, 734589, 789003, 2367009, 7101027, 21303081]

約数ペア:

[(1, 21303081), (3, 7101027), (9, 2367009), (27, 789003), (29, 734589), (81, 263001), (87, 244863), (243, 87667), (261, 81621), (783, 27207), (2349, 9069), (3023, 7047)]