20686526

素因数分解:

$2^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{4909}}^1$

素因数の和:4968

約数の個数: 24

約数和(自身を含む): 36942840

約数和(自身を除く): 16256314

約数列:

[1, 2, 7, 14, 43, 49, 86, 98, 301, 602, 2107, 4214, 4909, 9818, 34363, 68726, 211087, 240541, 422174, 481082, 1477609, 2955218, 10343263, 20686526]

約数ペア:

[(1, 20686526), (2, 10343263), (7, 2955218), (14, 1477609), (43, 481082), (49, 422174), (86, 240541), (98, 211087), (301, 68726), (602, 34363), (2107, 9818), (4214, 4909)]