21255675

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{40487}}^1$

素因数の和:40507

約数の個数: 24

約数和(自身を含む): 40164096

約数和(自身を除く): 18908421

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525, 40487, 121461, 202435, 283409, 607305, 850227, 1012175, 1417045, 3036525, 4251135, 7085225, 21255675]

約数ペア:

[(1, 21255675), (3, 7085225), (5, 4251135), (7, 3036525), (15, 1417045), (21, 1012175), (25, 850227), (35, 607305), (75, 283409), (105, 202435), (175, 121461), (525, 40487)]