21631854

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 48522240

約数和(自身を除く): 26890386

約数列:

[1, 2, 3, 6, 17, 29, 34, 51, 58, 71, 87, 102, 103, 142, 174, 206, 213, 309, 426, 493, 618, 986, 1207, 1479, 1751, 2059, 2414, 2958, 2987, 3502, 3621, 4118, 5253, 5974, 6177, 7242, 7313, 8961, 10506, 12354, 14626, 17922, 21939, 35003, 43878, 50779, 70006, 101558, 105009, 124321, 152337, 210018, 212077, 248642, 304674, 372963, 424154, 636231, 745926, 1272462, 3605309, 7210618, 10815927, 21631854]

約数ペア:

[(1, 21631854), (2, 10815927), (3, 7210618), (6, 3605309), (17, 1272462), (29, 745926), (34, 636231), (51, 424154), (58, 372963), (71, 304674), (87, 248642), (102, 212077), (103, 210018), (142, 152337), (174, 124321), (206, 105009), (213, 101558), (309, 70006), (426, 50779), (493, 43878), (618, 35003), (986, 21939), (1207, 17922), (1479, 14626), (1751, 12354), (2059, 10506), (2414, 8961), (2958, 7313), (2987, 7242), (3502, 6177), (3621, 5974), (4118, 5253)]