18481869

素因数分解:

$3^2\times 7^3\times {\mathrm{5987}}^1$

素因数の和:6014

約数の個数: 24

約数和(自身を含む): 31137600

約数和(自身を除く): 12655731

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 5987, 17961, 41909, 53883, 125727, 293363, 377181, 880089, 2053541, 2640267, 6160623, 18481869]

約数ペア:

[(1, 18481869), (3, 6160623), (7, 2640267), (9, 2053541), (21, 880089), (49, 377181), (63, 293363), (147, 125727), (343, 53883), (441, 41909), (1029, 17961), (3087, 5987)]