19946709

素因数分解:

$3^3\times {\mathrm{53}}^2\times {\mathrm{263}}^1$

素因数の和:378

約数の個数: 24

約数和(自身を含む): 30233280

約数和(自身を除く): 10286571

約数列:

[1, 3, 9, 27, 53, 159, 263, 477, 789, 1431, 2367, 2809, 7101, 8427, 13939, 25281, 41817, 75843, 125451, 376353, 738767, 2216301, 6648903, 19946709]

約数ペア:

[(1, 19946709), (3, 6648903), (9, 2216301), (27, 738767), (53, 376353), (159, 125451), (263, 75843), (477, 41817), (789, 25281), (1431, 13939), (2367, 8427), (2809, 7101)]