138663

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:115

約数の個数: 24

約数和(自身を含む): 239616

約数和(自身を除く): 100953

約数列:

[1, 3, 7, 9, 21, 31, 63, 71, 93, 213, 217, 279, 497, 639, 651, 1491, 1953, 2201, 4473, 6603, 15407, 19809, 46221, 138663]

約数ペア:

[(1, 138663), (3, 46221), (7, 19809), (9, 15407), (21, 6603), (31, 4473), (63, 2201), (71, 1953), (93, 1491), (213, 651), (217, 639), (279, 497)]