20508411

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{1153}}^1$

素因数の和:1192

約数の個数: 36

約数和(自身を含む): 34993896

約数和(自身を除く): 14485485

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 121, 147, 231, 363, 539, 847, 1153, 1617, 2541, 3459, 5929, 8071, 12683, 17787, 24213, 38049, 56497, 88781, 139513, 169491, 266343, 418539, 621467, 976591, 1864401, 2929773, 6836137, 20508411]

約数ペア:

[(1, 20508411), (3, 6836137), (7, 2929773), (11, 1864401), (21, 976591), (33, 621467), (49, 418539), (77, 266343), (121, 169491), (147, 139513), (231, 88781), (363, 56497), (539, 38049), (847, 24213), (1153, 17787), (1617, 12683), (2541, 8071), (3459, 5929)]