17799921

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{63799}}^1$

素因数の和:63836

約数の個数: 12

約数和(自身を含む): 26540800

約数和(自身を除く): 8740879

約数列:

[1, 3, 9, 31, 93, 279, 63799, 191397, 574191, 1977769, 5933307, 17799921]

約数ペア:

[(1, 17799921), (3, 5933307), (9, 1977769), (31, 574191), (93, 191397), (279, 63799)]