18991610

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{4211}}^1$

素因数の和:4270

約数の個数: 32

約数和(自身を含む): 38211264

約数和(自身を除く): 19219654

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 110, 205, 410, 451, 902, 2255, 4211, 4510, 8422, 21055, 42110, 46321, 92642, 172651, 231605, 345302, 463210, 863255, 1726510, 1899161, 3798322, 9495805, 18991610]

約数ペア:

[(1, 18991610), (2, 9495805), (5, 3798322), (10, 1899161), (11, 1726510), (22, 863255), (41, 463210), (55, 345302), (82, 231605), (110, 172651), (205, 92642), (410, 46321), (451, 42110), (902, 21055), (2255, 8422), (4211, 4510)]