21988380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{12637}}^1$

素因数の和:12678

約数の個数: 48

約数和(自身を含む): 63695520

約数和(自身を除く): 41707140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 435, 580, 870, 1740, 12637, 25274, 37911, 50548, 63185, 75822, 126370, 151644, 189555, 252740, 366473, 379110, 732946, 758220, 1099419, 1465892, 1832365, 2198838, 3664730, 4397676, 5497095, 7329460, 10994190, 21988380]

約数ペア:

[(1, 21988380), (2, 10994190), (3, 7329460), (4, 5497095), (5, 4397676), (6, 3664730), (10, 2198838), (12, 1832365), (15, 1465892), (20, 1099419), (29, 758220), (30, 732946), (58, 379110), (60, 366473), (87, 252740), (116, 189555), (145, 151644), (174, 126370), (290, 75822), (348, 63185), (435, 50548), (580, 37911), (870, 25274), (1740, 12637)]