21351048

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1217}}^1$

素因数の和:1286

約数の個数: 64

約数和(自身を含む): 57879360

約数和(自身を除く): 36528312

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 43, 51, 68, 86, 102, 129, 136, 172, 204, 258, 344, 408, 516, 731, 1032, 1217, 1462, 2193, 2434, 2924, 3651, 4386, 4868, 5848, 7302, 8772, 9736, 14604, 17544, 20689, 29208, 41378, 52331, 62067, 82756, 104662, 124134, 156993, 165512, 209324, 248268, 313986, 418648, 496536, 627972, 889627, 1255944, 1779254, 2668881, 3558508, 5337762, 7117016, 10675524, 21351048]

約数ペア:

[(1, 21351048), (2, 10675524), (3, 7117016), (4, 5337762), (6, 3558508), (8, 2668881), (12, 1779254), (17, 1255944), (24, 889627), (34, 627972), (43, 496536), (51, 418648), (68, 313986), (86, 248268), (102, 209324), (129, 165512), (136, 156993), (172, 124134), (204, 104662), (258, 82756), (344, 62067), (408, 52331), (516, 41378), (731, 29208), (1032, 20689), (1217, 17544), (1462, 14604), (2193, 9736), (2434, 8772), (2924, 7302), (3651, 5848), (4386, 4868)]