28557837

素因数分解:

$3^2\times 7^3\times {\mathrm{11}}^1\times {\mathrm{29}}^2$

素因数の和:96

約数の個数: 72

約数和(自身を含む): 54350400

約数和(自身を除く): 25792563

約数列:

[1, 3, 7, 9, 11, 21, 29, 33, 49, 63, 77, 87, 99, 147, 203, 231, 261, 319, 343, 441, 539, 609, 693, 841, 957, 1029, 1421, 1617, 1827, 2233, 2523, 2871, 3087, 3773, 4263, 4851, 5887, 6699, 7569, 9251, 9947, 11319, 12789, 15631, 17661, 20097, 27753, 29841, 33957, 41209, 46893, 52983, 64757, 83259, 89523, 109417, 123627, 140679, 194271, 288463, 328251, 370881, 453299, 582813, 865389, 984753, 1359897, 2596167, 3173093, 4079691, 9519279, 28557837]

約数ペア:

[(1, 28557837), (3, 9519279), (7, 4079691), (9, 3173093), (11, 2596167), (21, 1359897), (29, 984753), (33, 865389), (49, 582813), (63, 453299), (77, 370881), (87, 328251), (99, 288463), (147, 194271), (203, 140679), (231, 123627), (261, 109417), (319, 89523), (343, 83259), (441, 64757), (539, 52983), (609, 46893), (693, 41209), (841, 33957), (957, 29841), (1029, 27753), (1421, 20097), (1617, 17661), (1827, 15631), (2233, 12789), (2523, 11319), (2871, 9947), (3087, 9251), (3773, 7569), (4263, 6699), (4851, 5887)]