20102978

素因数分解:

$2^1\times 7^1\times {\mathrm{1087}}^1\times {\mathrm{1321}}^1$

素因数の和:2417

約数の個数: 16

約数和(自身を含む): 34520064

約数和(自身を除く): 14417086

約数列:

[1, 2, 7, 14, 1087, 1321, 2174, 2642, 7609, 9247, 15218, 18494, 1435927, 2871854, 10051489, 20102978]

約数ペア:

[(1, 20102978), (2, 10051489), (7, 2871854), (14, 1435927), (1087, 18494), (1321, 15218), (2174, 9247), (2642, 7609)]