21730065

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{206953}}^1$

素因数の和:206968

約数の個数: 16

約数和(自身を含む): 39735168

約数和(自身を除く): 18005103

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 206953, 620859, 1034765, 1448671, 3104295, 4346013, 7243355, 21730065]

約数ペア:

[(1, 21730065), (3, 7243355), (5, 4346013), (7, 3104295), (15, 1448671), (21, 1034765), (35, 620859), (105, 206953)]