21002335

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{1009}}^1$

素因数の和:1218

約数の個数: 16

約数和(自身を含む): 26470080

約数和(自身を除く): 5467745

約数列:

[1, 5, 23, 115, 181, 905, 1009, 4163, 5045, 20815, 23207, 116035, 182629, 913145, 4200467, 21002335]

約数ペア:

[(1, 21002335), (5, 4200467), (23, 913145), (115, 182629), (181, 116035), (905, 23207), (1009, 20815), (4163, 5045)]