28220685

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{43753}}^1$

素因数の和:43804

約数の個数: 16

約数和(自身を含む): 46204224

約数和(自身を除く): 17983539

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 43753, 131259, 218765, 656295, 1881379, 5644137, 9406895, 28220685]

約数ペア:

[(1, 28220685), (3, 9406895), (5, 5644137), (15, 1881379), (43, 656295), (129, 218765), (215, 131259), (645, 43753)]