19873220

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{7253}}^1$

素因数の和:7399

約数の個数: 24

約数和(自身を含む): 42044184

約数和(自身を除く): 22170964

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 7253, 14506, 29012, 36265, 72530, 145060, 993661, 1987322, 3974644, 4968305, 9936610, 19873220]

約数ペア:

[(1, 19873220), (2, 9936610), (4, 4968305), (5, 3974644), (10, 1987322), (20, 993661), (137, 145060), (274, 72530), (548, 36265), (685, 29012), (1370, 14506), (2740, 7253)]