20777968

素因数分解:

$2^4\times {\mathrm{137}}^1\times {\mathrm{9479}}^1$

素因数の和:9624

約数の個数: 20

約数和(自身を含む): 40555440

約数和(自身を除く): 19777472

約数列:

[1, 2, 4, 8, 16, 137, 274, 548, 1096, 2192, 9479, 18958, 37916, 75832, 151664, 1298623, 2597246, 5194492, 10388984, 20777968]

約数ペア:

[(1, 20777968), (2, 10388984), (4, 5194492), (8, 2597246), (16, 1298623), (137, 151664), (274, 75832), (548, 37916), (1096, 18958), (2192, 9479)]