28221897

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{103}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 45646848

約数和(自身を除く): 17424951

約数列:

[1, 3, 11, 19, 23, 33, 57, 69, 103, 209, 253, 309, 361, 437, 627, 759, 1083, 1133, 1311, 1957, 2369, 3399, 3971, 4807, 5871, 7107, 8303, 11913, 14421, 21527, 24909, 26059, 37183, 45011, 64581, 78177, 91333, 111549, 135033, 273999, 409013, 495121, 855209, 1227039, 1485363, 2565627, 9407299, 28221897]

約数ペア:

[(1, 28221897), (3, 9407299), (11, 2565627), (19, 1485363), (23, 1227039), (33, 855209), (57, 495121), (69, 409013), (103, 273999), (209, 135033), (253, 111549), (309, 91333), (361, 78177), (437, 64581), (627, 45011), (759, 37183), (1083, 26059), (1133, 24909), (1311, 21527), (1957, 14421), (2369, 11913), (3399, 8303), (3971, 7107), (4807, 5871)]