18985209

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{1949}}^1$

素因数の和:2160

約数の個数: 16

約数和(自身を含む): 26956800

約数和(自身を除く): 7971591

約数列:

[1, 3, 17, 51, 191, 573, 1949, 3247, 5847, 9741, 33133, 99399, 372259, 1116777, 6328403, 18985209]

約数ペア:

[(1, 18985209), (3, 6328403), (17, 1116777), (51, 372259), (191, 99399), (573, 33133), (1949, 9741), (3247, 5847)]