20654858

素因数分解:

$2^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{6173}}^1$

素因数の和:6421

約数の個数: 16

約数和(自身を含む): 35562240

約数和(自身を除く): 14907382

約数列:

[1, 2, 7, 14, 239, 478, 1673, 3346, 6173, 12346, 43211, 86422, 1475347, 2950694, 10327429, 20654858]

約数ペア:

[(1, 20654858), (2, 10327429), (7, 2950694), (14, 1475347), (239, 86422), (478, 43211), (1673, 12346), (3346, 6173)]