21162536

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{61519}}^1$

素因数の和:61568

約数の個数: 16

約数和(自身を含む): 40603200

約数和(自身を除く): 19440664

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 61519, 123038, 246076, 492152, 2645317, 5290634, 10581268, 21162536]

約数ペア:

[(1, 21162536), (2, 10581268), (4, 5290634), (8, 2645317), (43, 492152), (86, 246076), (172, 123038), (344, 61519)]