21447489

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{60077}}^1$

素因数の和:60104

約数の個数: 16

約数和(自身を含む): 34604928

約数和(自身を除く): 13157439

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 60077, 180231, 420539, 1021309, 1261617, 3063927, 7149163, 21447489]

約数ペア:

[(1, 21447489), (3, 7149163), (7, 3063927), (17, 1261617), (21, 1021309), (51, 420539), (119, 180231), (357, 60077)]