21897225

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{13903}}^1$

素因数の和:13926

約数の個数: 36

約数和(自身を含む): 44826496

約数和(自身を除く): 22929271

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 175, 225, 315, 525, 1575, 13903, 41709, 69515, 97321, 125127, 208545, 291963, 347575, 486605, 625635, 875889, 1042725, 1459815, 2433025, 3128175, 4379445, 7299075, 21897225]

約数ペア:

[(1, 21897225), (3, 7299075), (5, 4379445), (7, 3128175), (9, 2433025), (15, 1459815), (21, 1042725), (25, 875889), (35, 625635), (45, 486605), (63, 347575), (75, 291963), (105, 208545), (175, 125127), (225, 97321), (315, 69515), (525, 41709), (1575, 13903)]