21542717

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1\times {\mathrm{229}}^1$

素因数の和:476

約数の個数: 16

約数和(自身を含む): 25171200

約数和(自身を除く): 3628483

約数列:

[1, 7, 89, 151, 229, 623, 1057, 1603, 13439, 20381, 34579, 94073, 142667, 242053, 3077531, 21542717]

約数ペア:

[(1, 21542717), (7, 3077531), (89, 242053), (151, 142667), (229, 94073), (623, 34579), (1057, 20381), (1603, 13439)]