21136140

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{4349}}^1$

素因数の和:4373

約数の個数: 72

約数和(自身を含む): 66502800

約数和(自身を除く): 45366660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 4349, 4860, 8698, 13047, 17396, 21745, 26094, 39141, 43490, 52188, 65235, 78282, 86980, 117423, 130470, 156564, 195705, 234846, 260940, 352269, 391410, 469692, 587115, 704538, 782820, 1056807, 1174230, 1409076, 1761345, 2113614, 2348460, 3522690, 4227228, 5284035, 7045380, 10568070, 21136140]

約数ペア:

[(1, 21136140), (2, 10568070), (3, 7045380), (4, 5284035), (5, 4227228), (6, 3522690), (9, 2348460), (10, 2113614), (12, 1761345), (15, 1409076), (18, 1174230), (20, 1056807), (27, 782820), (30, 704538), (36, 587115), (45, 469692), (54, 391410), (60, 352269), (81, 260940), (90, 234846), (108, 195705), (135, 156564), (162, 130470), (180, 117423), (243, 86980), (270, 78282), (324, 65235), (405, 52188), (486, 43490), (540, 39141), (810, 26094), (972, 21745), (1215, 17396), (1620, 13047), (2430, 8698), (4349, 4860)]