19943037

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{19963}}^1$

素因数の和:20009

約数の個数: 16

約数和(自身を含む): 30345280

約数和(自身を除く): 10402243

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 19963, 59889, 179667, 539001, 738631, 2215893, 6647679, 19943037]

約数ペア:

[(1, 19943037), (3, 6647679), (9, 2215893), (27, 738631), (37, 539001), (111, 179667), (333, 59889), (999, 19963)]