805707

素因数分解:

$3^4\times 7^3\times {\mathrm{29}}^1$

素因数の和:62

約数の個数: 40

約数和(自身を含む): 1452000

約数和(自身を除く): 646293

約数列:

[1, 3, 7, 9, 21, 27, 29, 49, 63, 81, 87, 147, 189, 203, 261, 343, 441, 567, 609, 783, 1029, 1323, 1421, 1827, 2349, 3087, 3969, 4263, 5481, 9261, 9947, 12789, 16443, 27783, 29841, 38367, 89523, 115101, 268569, 805707]

約数ペア:

[(1, 805707), (3, 268569), (7, 115101), (9, 89523), (21, 38367), (27, 29841), (29, 27783), (49, 16443), (63, 12789), (81, 9947), (87, 9261), (147, 5481), (189, 4263), (203, 3969), (261, 3087), (343, 2349), (441, 1827), (567, 1421), (609, 1323), (783, 1029)]