21080325

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{40153}}^1$

素因数の和:40173

約数の個数: 24

約数和(自身を含む): 39832768

約数和(自身を除く): 18752443

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525, 40153, 120459, 200765, 281071, 602295, 843213, 1003825, 1405355, 3011475, 4216065, 7026775, 21080325]

約数ペア:

[(1, 21080325), (3, 7026775), (5, 4216065), (7, 3011475), (15, 1405355), (21, 1003825), (25, 843213), (35, 602295), (75, 281071), (105, 200765), (175, 120459), (525, 40153)]