20843787

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{337}}^1\times {\mathrm{389}}^1$

素因数の和:782

約数の個数: 16

約数和(自身を含む): 28473120

約数和(自身を除く): 7629333

約数列:

[1, 3, 53, 159, 337, 389, 1011, 1167, 17861, 20617, 53583, 61851, 131093, 393279, 6947929, 20843787]

約数ペア:

[(1, 20843787), (3, 6947929), (53, 393279), (159, 131093), (337, 61851), (389, 53583), (1011, 20617), (1167, 17861)]