19661121

素因数分解:

$3^2\times {\mathrm{421}}^1\times {\mathrm{5189}}^1$

素因数の和:5616

約数の個数: 12

約数和(自身を含む): 28472340

約数和(自身を除く): 8811219

約数列:

[1, 3, 9, 421, 1263, 3789, 5189, 15567, 46701, 2184569, 6553707, 19661121]

約数ペア:

[(1, 19661121), (3, 6553707), (9, 2184569), (421, 46701), (1263, 15567), (3789, 5189)]