20771690

素因数分解:

$2^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{6679}}^1$

素因数の和:6997

約数の個数: 16

約数和(自身を含む): 37514880

約数和(自身を除く): 16743190

約数列:

[1, 2, 5, 10, 311, 622, 1555, 3110, 6679, 13358, 33395, 66790, 2077169, 4154338, 10385845, 20771690]

約数ペア:

[(1, 20771690), (2, 10385845), (5, 4154338), (10, 2077169), (311, 66790), (622, 33395), (1555, 13358), (3110, 6679)]