21995340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{12641}}^1$

素因数の和:12682

約数の個数: 48

約数和(自身を含む): 63715680

約数和(自身を除く): 41720340

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, 12641, 25282, 37923, 50564, 63205, 75846, 126410, 151692, 189615, 252820, 366589, 379230, 733178, 758460, 1099767, 1466356, 1832945, 2199534, 3665890, 4399068, 5498835, 7331780, 10997670, 21995340]

約数ペア:

[(1, 21995340), (2, 10997670), (3, 7331780), (4, 5498835), (5, 4399068), (6, 3665890), (10, 2199534), (12, 1832945), (15, 1466356), (20, 1099767), (29, 758460), (30, 733178), (58, 379230), (60, 366589), (87, 252820), (116, 189615), (145, 151692), (174, 126410), (290, 75846), (348, 63205), (435, 50564), (580, 37923), (870, 25282), (1740, 12641)]