20321950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{3359}}^1$

素因数の和:3393

約数の個数: 36

約数和(自身を含む): 41559840

約数和(自身を除く): 21237890

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 121, 242, 275, 550, 605, 1210, 3025, 3359, 6050, 6718, 16795, 33590, 36949, 73898, 83975, 167950, 184745, 369490, 406439, 812878, 923725, 1847450, 2032195, 4064390, 10160975, 20321950]

約数ペア:

[(1, 20321950), (2, 10160975), (5, 4064390), (10, 2032195), (11, 1847450), (22, 923725), (25, 812878), (50, 406439), (55, 369490), (110, 184745), (121, 167950), (242, 83975), (275, 73898), (550, 36949), (605, 33590), (1210, 16795), (3025, 6718), (3359, 6050)]