20645848

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{60017}}^1$

素因数の和:60066

約数の個数: 16

約数和(自身を含む): 39611880

約数和(自身を除く): 18966032

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 60017, 120034, 240068, 480136, 2580731, 5161462, 10322924, 20645848]

約数ペア:

[(1, 20645848), (2, 10322924), (4, 5161462), (8, 2580731), (43, 480136), (86, 240068), (172, 120034), (344, 60017)]