20457486

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{229}}^1\times {\mathrm{709}}^1$

素因数の和:953

約数の個数: 48

約数和(自身を含む): 50949600

約数和(自身を除く): 30492114

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 229, 458, 687, 709, 1374, 1418, 1603, 2061, 2127, 3206, 4122, 4254, 4809, 4963, 6381, 9618, 9926, 12762, 14427, 14889, 28854, 29778, 44667, 89334, 162361, 324722, 487083, 974166, 1136527, 1461249, 2273054, 2922498, 3409581, 6819162, 10228743, 20457486]

約数ペア:

[(1, 20457486), (2, 10228743), (3, 6819162), (6, 3409581), (7, 2922498), (9, 2273054), (14, 1461249), (18, 1136527), (21, 974166), (42, 487083), (63, 324722), (126, 162361), (229, 89334), (458, 44667), (687, 29778), (709, 28854), (1374, 14889), (1418, 14427), (1603, 12762), (2061, 9926), (2127, 9618), (3206, 6381), (4122, 4963), (4254, 4809)]