21372225

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{40709}}^1$

素因数の和:40729

約数の個数: 24

約数和(自身を含む): 40384320

約数和(自身を除く): 19012095

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525, 40709, 122127, 203545, 284963, 610635, 854889, 1017725, 1424815, 3053175, 4274445, 7124075, 21372225]

約数ペア:

[(1, 21372225), (3, 7124075), (5, 4274445), (7, 3053175), (15, 1424815), (21, 1017725), (25, 854889), (35, 610635), (75, 284963), (105, 203545), (175, 122127), (525, 40709)]