20948823

素因数分解:

$3^2\times 7^2\times {\mathrm{67}}^1\times {\mathrm{709}}^1$

素因数の和:796

約数の個数: 36

約数和(自身を含む): 35775480

約数和(自身を除く): 14826657

約数列:

[1, 3, 7, 9, 21, 49, 63, 67, 147, 201, 441, 469, 603, 709, 1407, 2127, 3283, 4221, 4963, 6381, 9849, 14889, 29547, 34741, 44667, 47503, 104223, 142509, 312669, 332521, 427527, 997563, 2327647, 2992689, 6982941, 20948823]

約数ペア:

[(1, 20948823), (3, 6982941), (7, 2992689), (9, 2327647), (21, 997563), (49, 427527), (63, 332521), (67, 312669), (147, 142509), (201, 104223), (441, 47503), (469, 44667), (603, 34741), (709, 29547), (1407, 14889), (2127, 9849), (3283, 6381), (4221, 4963)]