21825780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2617}}^1$

素因数の和:2768

約数の個数: 48

約数和(自身を含む): 61575360

約数和(自身を除く): 39749580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 139, 278, 417, 556, 695, 834, 1390, 1668, 2085, 2617, 2780, 4170, 5234, 7851, 8340, 10468, 13085, 15702, 26170, 31404, 39255, 52340, 78510, 157020, 363763, 727526, 1091289, 1455052, 1818815, 2182578, 3637630, 4365156, 5456445, 7275260, 10912890, 21825780]

約数ペア:

[(1, 21825780), (2, 10912890), (3, 7275260), (4, 5456445), (5, 4365156), (6, 3637630), (10, 2182578), (12, 1818815), (15, 1455052), (20, 1091289), (30, 727526), (60, 363763), (139, 157020), (278, 78510), (417, 52340), (556, 39255), (695, 31404), (834, 26170), (1390, 15702), (1668, 13085), (2085, 10468), (2617, 8340), (2780, 7851), (4170, 5234)]