20996525

素因数分解:

$5^2\times {\mathrm{11}}^3\times {\mathrm{631}}^1$

素因数の和:674

約数の個数: 24

約数和(自身を含む): 28682688

約数和(自身を除く): 7686163

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 631, 1331, 3025, 3155, 6655, 6941, 15775, 33275, 34705, 76351, 173525, 381755, 839861, 1908775, 4199305, 20996525]

約数ペア:

[(1, 20996525), (5, 4199305), (11, 1908775), (25, 839861), (55, 381755), (121, 173525), (275, 76351), (605, 34705), (631, 33275), (1331, 15775), (3025, 6941), (3155, 6655)]