19193193

素因数分解:

$3^4\times {\mathrm{211}}^1\times {\mathrm{1123}}^1$

素因数の和:1346

約数の個数: 20

約数和(自身を含む): 28832848

約数和(自身を除く): 9639655

約数列:

[1, 3, 9, 27, 81, 211, 633, 1123, 1899, 3369, 5697, 10107, 17091, 30321, 90963, 236953, 710859, 2132577, 6397731, 19193193]

約数ペア:

[(1, 19193193), (3, 6397731), (9, 2132577), (27, 710859), (81, 236953), (211, 90963), (633, 30321), (1123, 17091), (1899, 10107), (3369, 5697)]