21194085

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128449}}^1$

素因数の和:128468

約数の個数: 16

約数和(自身を含む): 36993600

約数和(自身を除く): 15799515

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 128449, 385347, 642245, 1412939, 1926735, 4238817, 7064695, 21194085]

約数ペア:

[(1, 21194085), (3, 7064695), (5, 4238817), (11, 1926735), (15, 1412939), (33, 642245), (55, 385347), (165, 128449)]