21580856

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{1931}}^1$

素因数の和:2075

約数の個数: 32

約数和(自身を含む): 44513280

約数和(自身を除く): 22932424

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 127, 254, 508, 1016, 1397, 1931, 2794, 3862, 5588, 7724, 11176, 15448, 21241, 42482, 84964, 169928, 245237, 490474, 980948, 1961896, 2697607, 5395214, 10790428, 21580856]

約数ペア:

[(1, 21580856), (2, 10790428), (4, 5395214), (8, 2697607), (11, 1961896), (22, 980948), (44, 490474), (88, 245237), (127, 169928), (254, 84964), (508, 42482), (1016, 21241), (1397, 15448), (1931, 11176), (2794, 7724), (3862, 5588)]