21648935

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{277}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 34227360

約数和(自身を除く): 12578425

約数列:

[1, 5, 7, 11, 29, 35, 49, 55, 77, 145, 203, 245, 277, 319, 385, 539, 1015, 1385, 1421, 1595, 1939, 2233, 2695, 3047, 7105, 8033, 9695, 11165, 13573, 15235, 15631, 21329, 40165, 56231, 67865, 78155, 88363, 106645, 149303, 281155, 393617, 441815, 618541, 746515, 1968085, 3092705, 4329787, 21648935]

約数ペア:

[(1, 21648935), (5, 4329787), (7, 3092705), (11, 1968085), (29, 746515), (35, 618541), (49, 441815), (55, 393617), (77, 281155), (145, 149303), (203, 106645), (245, 88363), (277, 78155), (319, 67865), (385, 56231), (539, 40165), (1015, 21329), (1385, 15631), (1421, 15235), (1595, 13573), (1939, 11165), (2233, 9695), (2695, 8033), (3047, 7105)]