21389445

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6173}}^1$

素因数の和:6202

約数の個数: 48

約数和(自身を含む): 46230912

約数和(自身を除く): 24841467

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 693, 1155, 3465, 6173, 18519, 30865, 43211, 55557, 67903, 92595, 129633, 203709, 216055, 277785, 339515, 388899, 475321, 611127, 648165, 1018545, 1425963, 1944495, 2376605, 3055635, 4277889, 7129815, 21389445]

約数ペア:

[(1, 21389445), (3, 7129815), (5, 4277889), (7, 3055635), (9, 2376605), (11, 1944495), (15, 1425963), (21, 1018545), (33, 648165), (35, 611127), (45, 475321), (55, 388899), (63, 339515), (77, 277785), (99, 216055), (105, 203709), (165, 129633), (231, 92595), (315, 67903), (385, 55557), (495, 43211), (693, 30865), (1155, 18519), (3465, 6173)]