20879005

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31397}}^1$

素因数の和:31428

約数の個数: 16

約数和(自身を含む): 30142080

約数和(自身を除く): 9263075

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 31397, 156985, 219779, 596543, 1098895, 2982715, 4175801, 20879005]

約数ペア:

[(1, 20879005), (5, 4175801), (7, 2982715), (19, 1098895), (35, 596543), (95, 219779), (133, 156985), (665, 31397)]