19403709

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{1279}}^1$

素因数の和:1684

約数の個数: 16

約数和(自身を含む): 27955200

約数和(自身を除く): 8551491

約数列:

[1, 3, 13, 39, 389, 1167, 1279, 3837, 5057, 15171, 16627, 49881, 497531, 1492593, 6467903, 19403709]

約数ペア:

[(1, 19403709), (3, 6467903), (13, 1492593), (39, 497531), (389, 49881), (1167, 16627), (1279, 15171), (3837, 5057)]