21122245

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{5779}}^1$

素因数の和:5844

約数の個数: 16

約数和(自身を含む): 27466560

約数和(自身を除く): 6344315

約数列:

[1, 5, 17, 43, 85, 215, 731, 3655, 5779, 28895, 98243, 248497, 491215, 1242485, 4224449, 21122245]

約数ペア:

[(1, 21122245), (5, 4224449), (17, 1242485), (43, 491215), (85, 248497), (215, 98243), (731, 28895), (3655, 5779)]