217760116

素因数分解:

$2^2\times 7^2\times {\mathrm{1111021}}^1$

素因数の和:1111039

約数の個数: 18

約数和(自身を含む): 443297778

約数和(自身を除く): 225537662

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 1111021, 2222042, 4444084, 7777147, 15554294, 31108588, 54440029, 108880058, 217760116]

約数ペア:

[(1, 217760116), (2, 108880058), (4, 54440029), (7, 31108588), (14, 15554294), (28, 7777147), (49, 4444084), (98, 2222042), (196, 1111021)]