18681255

素因数分解:

$3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3169}}^1$

素因数の和:3311

約数の個数: 24

約数和(自身を含む): 32638320

約数和(自身を除く): 13957065

約数列:

[1, 3, 5, 9, 15, 45, 131, 393, 655, 1179, 1965, 3169, 5895, 9507, 15845, 28521, 47535, 142605, 415139, 1245417, 2075695, 3736251, 6227085, 18681255]

約数ペア:

[(1, 18681255), (3, 6227085), (5, 3736251), (9, 2075695), (15, 1245417), (45, 415139), (131, 142605), (393, 47535), (655, 28521), (1179, 15845), (1965, 9507), (3169, 5895)]