28472229

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:112

約数の個数: 80

約数和(自身を含む): 50181120

約数和(自身を除く): 21708891

約数列:

[1, 3, 9, 17, 23, 27, 29, 31, 51, 69, 81, 87, 93, 153, 207, 261, 279, 391, 459, 493, 527, 621, 667, 713, 783, 837, 899, 1173, 1377, 1479, 1581, 1863, 2001, 2139, 2349, 2511, 2697, 3519, 4437, 4743, 6003, 6417, 8091, 10557, 11339, 12121, 13311, 14229, 15283, 18009, 19251, 20677, 24273, 31671, 34017, 36363, 39933, 42687, 45849, 54027, 57753, 62031, 72819, 102051, 109089, 137547, 186093, 306153, 327267, 351509, 412641, 558279, 918459, 981801, 1054527, 1237923, 1674837, 3163581, 9490743, 28472229]

約数ペア:

[(1, 28472229), (3, 9490743), (9, 3163581), (17, 1674837), (23, 1237923), (27, 1054527), (29, 981801), (31, 918459), (51, 558279), (69, 412641), (81, 351509), (87, 327267), (93, 306153), (153, 186093), (207, 137547), (261, 109089), (279, 102051), (391, 72819), (459, 62031), (493, 57753), (527, 54027), (621, 45849), (667, 42687), (713, 39933), (783, 36363), (837, 34017), (899, 31671), (1173, 24273), (1377, 20677), (1479, 19251), (1581, 18009), (1863, 15283), (2001, 14229), (2139, 13311), (2349, 12121), (2511, 11339), (2697, 10557), (3519, 8091), (4437, 6417), (4743, 6003)]