21723065

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47743}}^1$

素因数の和:47768

約数の個数: 16

約数和(自身を含む): 32083968

約数和(自身を除く): 10360903

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 47743, 238715, 334201, 620659, 1671005, 3103295, 4344613, 21723065]

約数ペア:

[(1, 21723065), (5, 4344613), (7, 3103295), (13, 1671005), (35, 620659), (65, 334201), (91, 238715), (455, 47743)]