28879389

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{479}}^1$

素因数の和:535

約数の個数: 64

約数和(自身を含む): 55296000

約数和(自身を除く): 26416611

約数列:

[1, 3, 7, 9, 11, 21, 27, 29, 33, 63, 77, 87, 99, 189, 203, 231, 261, 297, 319, 479, 609, 693, 783, 957, 1437, 1827, 2079, 2233, 2871, 3353, 4311, 5269, 5481, 6699, 8613, 10059, 12933, 13891, 15807, 20097, 30177, 36883, 41673, 47421, 60291, 90531, 97237, 110649, 125019, 142263, 152801, 291711, 331947, 375057, 458403, 875133, 995841, 1069607, 1375209, 2625399, 3208821, 4125627, 9626463, 28879389]

約数ペア:

[(1, 28879389), (3, 9626463), (7, 4125627), (9, 3208821), (11, 2625399), (21, 1375209), (27, 1069607), (29, 995841), (33, 875133), (63, 458403), (77, 375057), (87, 331947), (99, 291711), (189, 152801), (203, 142263), (231, 125019), (261, 110649), (297, 97237), (319, 90531), (479, 60291), (609, 47421), (693, 41673), (783, 36883), (957, 30177), (1437, 20097), (1827, 15807), (2079, 13891), (2233, 12933), (2871, 10059), (3353, 8613), (4311, 6699), (5269, 5481)]