28156527

素因数分解:

$3^2\times 7^4\times {\mathrm{1303}}^1$

素因数の和:1337

約数の個数: 30

約数和(自身を含む): 47482552

約数和(自身を除く): 19326025

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 1303, 2401, 3087, 3909, 7203, 9121, 11727, 21609, 27363, 63847, 82089, 191541, 446929, 574623, 1340787, 3128503, 4022361, 9385509, 28156527]

約数ペア:

[(1, 28156527), (3, 9385509), (7, 4022361), (9, 3128503), (21, 1340787), (49, 574623), (63, 446929), (147, 191541), (343, 82089), (441, 63847), (1029, 27363), (1303, 21609), (2401, 11727), (3087, 9121), (3909, 7203)]