20281065

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{193153}}^1$

素因数の和:193168

約数の個数: 16

約数和(自身を含む): 37085568

約数和(自身を除く): 16804503

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 193153, 579459, 965765, 1352071, 2897295, 4056213, 6760355, 20281065]

約数ペア:

[(1, 20281065), (3, 6760355), (5, 4056213), (7, 2897295), (15, 1352071), (21, 965765), (35, 579459), (105, 193153)]