20438576

素因数分解:

$2^4\times {\mathrm{809}}^1\times {\mathrm{1579}}^1$

素因数の和:2396

約数の個数: 20

約数和(自身を含む): 39673800

約数和(自身を除く): 19235224

約数列:

[1, 2, 4, 8, 16, 809, 1579, 1618, 3158, 3236, 6316, 6472, 12632, 12944, 25264, 1277411, 2554822, 5109644, 10219288, 20438576]

約数ペア:

[(1, 20438576), (2, 10219288), (4, 5109644), (8, 2554822), (16, 1277411), (809, 25264), (1579, 12944), (1618, 12632), (3158, 6472), (3236, 6316)]