21039828

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{47387}}^1$

素因数の和:47431

約数の個数: 24

約数和(自身を含む): 50420832

約数和(自身を除く): 29381004

約数列:

[1, 2, 3, 4, 6, 12, 37, 74, 111, 148, 222, 444, 47387, 94774, 142161, 189548, 284322, 568644, 1753319, 3506638, 5259957, 7013276, 10519914, 21039828]

約数ペア:

[(1, 21039828), (2, 10519914), (3, 7013276), (4, 5259957), (6, 3506638), (12, 1753319), (37, 568644), (74, 284322), (111, 189548), (148, 142161), (222, 94774), (444, 47387)]