30891609

素因数分解:

$3^2\times 7^3\times {\mathrm{10007}}^1$

素因数の和:10034

約数の個数: 24

約数和(自身を含む): 52041600

約数和(自身を除く): 21149991

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 10007, 30021, 70049, 90063, 210147, 490343, 630441, 1471029, 3432401, 4413087, 10297203, 30891609]

約数ペア:

[(1, 30891609), (3, 10297203), (7, 4413087), (9, 3432401), (21, 1471029), (49, 630441), (63, 490343), (147, 210147), (343, 90063), (441, 70049), (1029, 30021), (3087, 10007)]