20980044

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{13553}}^1$

素因数の和:13606

約数の個数: 36

約数和(自身を含む): 54270216

約数和(自身を除く): 33290172

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 13553, 27106, 40659, 54212, 81318, 121977, 162636, 243954, 487908, 582779, 1165558, 1748337, 2331116, 3496674, 5245011, 6993348, 10490022, 20980044]

約数ペア:

[(1, 20980044), (2, 10490022), (3, 6993348), (4, 5245011), (6, 3496674), (9, 2331116), (12, 1748337), (18, 1165558), (36, 582779), (43, 487908), (86, 243954), (129, 162636), (172, 121977), (258, 81318), (387, 54212), (516, 40659), (774, 27106), (1548, 13553)]