21746820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8429}}^1$

素因数の和:8484

約数の個数: 48

約数和(自身を含む): 62314560

約数和(自身を除く): 40567740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 8429, 16858, 25287, 33716, 42145, 50574, 84290, 101148, 126435, 168580, 252870, 362447, 505740, 724894, 1087341, 1449788, 1812235, 2174682, 3624470, 4349364, 5436705, 7248940, 10873410, 21746820]

約数ペア:

[(1, 21746820), (2, 10873410), (3, 7248940), (4, 5436705), (5, 4349364), (6, 3624470), (10, 2174682), (12, 1812235), (15, 1449788), (20, 1087341), (30, 724894), (43, 505740), (60, 362447), (86, 252870), (129, 168580), (172, 126435), (215, 101148), (258, 84290), (430, 50574), (516, 42145), (645, 33716), (860, 25287), (1290, 16858), (2580, 8429)]