21459897

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{11519}}^1$

素因数の和:11554

約数の個数: 20

約数和(自身を含む): 33454080

約数和(自身を除く): 11994183

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 11519, 34557, 103671, 264937, 311013, 794811, 933039, 2384433, 7153299, 21459897]

約数ペア:

[(1, 21459897), (3, 7153299), (9, 2384433), (23, 933039), (27, 794811), (69, 311013), (81, 264937), (207, 103671), (621, 34557), (1863, 11519)]