21500991

素因数分解:

$3^3\times {\mathrm{223}}^1\times {\mathrm{3571}}^1$

素因数の和:3803

約数の個数: 16

約数和(自身を含む): 32005120

約数和(自身を除く): 10504129

約数列:

[1, 3, 9, 27, 223, 669, 2007, 3571, 6021, 10713, 32139, 96417, 796333, 2388999, 7166997, 21500991]

約数ペア:

[(1, 21500991), (3, 7166997), (9, 2388999), (27, 796333), (223, 96417), (669, 32139), (2007, 10713), (3571, 6021)]