21942621

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1493}}^1$

素因数の和:1593

約数の個数: 24

約数和(自身を含む): 33561216

約数和(自身を除く): 11618595

約数列:

[1, 3, 9, 23, 69, 71, 207, 213, 639, 1493, 1633, 4479, 4899, 13437, 14697, 34339, 103017, 106003, 309051, 318009, 954027, 2438069, 7314207, 21942621]

約数ペア:

[(1, 21942621), (3, 7314207), (9, 2438069), (23, 954027), (69, 318009), (71, 309051), (207, 106003), (213, 103017), (639, 34339), (1493, 14697), (1633, 13437), (4479, 4899)]