21739448

素因数分解:

$2^3\times {\mathrm{809}}^1\times {\mathrm{3359}}^1$

素因数の和:4174

約数の個数: 16

約数和(自身を含む): 40824000

約数和(自身を除く): 19084552

約数列:

[1, 2, 4, 8, 809, 1618, 3236, 3359, 6472, 6718, 13436, 26872, 2717431, 5434862, 10869724, 21739448]

約数ペア:

[(1, 21739448), (2, 10869724), (4, 5434862), (8, 2717431), (809, 26872), (1618, 13436), (3236, 6718), (3359, 6472)]