21801100

素因数分解:

$2^2\times 5^2\times {\mathrm{311}}^1\times {\mathrm{701}}^1$

素因数の和:1026

約数の個数: 36

約数和(自身を含む): 47528208

約数和(自身を除く): 25727108

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 311, 622, 701, 1244, 1402, 1555, 2804, 3110, 3505, 6220, 7010, 7775, 14020, 15550, 17525, 31100, 35050, 70100, 218011, 436022, 872044, 1090055, 2180110, 4360220, 5450275, 10900550, 21801100]

約数ペア:

[(1, 21801100), (2, 10900550), (4, 5450275), (5, 4360220), (10, 2180110), (20, 1090055), (25, 872044), (50, 436022), (100, 218011), (311, 70100), (622, 35050), (701, 31100), (1244, 17525), (1402, 15550), (1555, 14020), (2804, 7775), (3110, 7010), (3505, 6220)]