20502486

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{26489}}^1$

素因数の和:26540

約数の個数: 24

約数和(自身を含む): 45456840

約数和(自身を除く): 24954354

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 26489, 52978, 79467, 158934, 238401, 476802, 1139027, 2278054, 3417081, 6834162, 10251243, 20502486]

約数ペア:

[(1, 20502486), (2, 10251243), (3, 6834162), (6, 3417081), (9, 2278054), (18, 1139027), (43, 476802), (86, 238401), (129, 158934), (258, 79467), (387, 52978), (774, 26489)]