643149

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:281

約数の個数: 24

約数和(自身を含む): 1048320

約数和(自身を除く): 405171

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 207, 239, 299, 717, 897, 2151, 2691, 3107, 5497, 9321, 16491, 27963, 49473, 71461, 214383, 643149]

約数ペア:

[(1, 643149), (3, 214383), (9, 71461), (13, 49473), (23, 27963), (39, 16491), (69, 9321), (117, 5497), (207, 3107), (239, 2691), (299, 2151), (717, 897)]