19999799613

素因数分解:

$3^3\times {\mathrm{397}}^1\times {\mathrm{1865827}}^1$

素因数の和:1866233

約数の個数: 16

約数和(自身を含む): 29703981760

約数和(自身を除く): 9704182147

約数列:

[1, 3, 9, 27, 397, 1191, 3573, 10719, 1865827, 5597481, 16792443, 50377329, 740733319, 2222199957, 6666599871, 19999799613]

約数ペア:

[(1, 19999799613), (3, 6666599871), (9, 2222199957), (27, 740733319), (397, 50377329), (1191, 16792443), (3573, 5597481), (10719, 1865827)]