28978047

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{311}}^1$

素因数の和:373

約数の個数: 64

約数和(自身を含む): 53913600

約数和(自身を除く): 24935553

約数列:

[1, 3, 7, 9, 17, 21, 27, 29, 51, 63, 87, 119, 153, 189, 203, 261, 311, 357, 459, 493, 609, 783, 933, 1071, 1479, 1827, 2177, 2799, 3213, 3451, 4437, 5287, 5481, 6531, 8397, 9019, 10353, 13311, 15861, 19593, 27057, 31059, 37009, 47583, 58779, 63133, 81171, 93177, 111027, 142749, 153323, 189399, 243513, 333081, 459969, 568197, 999243, 1073261, 1379907, 1704591, 3219783, 4139721, 9659349, 28978047]

約数ペア:

[(1, 28978047), (3, 9659349), (7, 4139721), (9, 3219783), (17, 1704591), (21, 1379907), (27, 1073261), (29, 999243), (51, 568197), (63, 459969), (87, 333081), (119, 243513), (153, 189399), (189, 153323), (203, 142749), (261, 111027), (311, 93177), (357, 81171), (459, 63133), (493, 58779), (609, 47583), (783, 37009), (933, 31059), (1071, 27057), (1479, 19593), (1827, 15861), (2177, 13311), (2799, 10353), (3213, 9019), (3451, 8397), (4437, 6531), (5287, 5481)]