21910435

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{1009}}^1$

素因数の和:1158

約数の個数: 16

約数和(自身を含む): 27197280

約数和(自身を除く): 5286845

約数列:

[1, 5, 43, 101, 215, 505, 1009, 4343, 5045, 21715, 43387, 101909, 216935, 509545, 4382087, 21910435]

約数ペア:

[(1, 21910435), (5, 4382087), (43, 509545), (101, 216935), (215, 101909), (505, 43387), (1009, 21715), (4343, 5045)]