18862767

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:281

約数の個数: 64

約数和(自身を含む): 35819520

約数和(自身を除く): 16956753

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 43, 63, 77, 99, 129, 189, 211, 231, 297, 301, 387, 473, 633, 693, 903, 1161, 1419, 1477, 1899, 2079, 2321, 2709, 3311, 4257, 4431, 5697, 6963, 8127, 9073, 9933, 12771, 13293, 16247, 20889, 27219, 29799, 39879, 48741, 62667, 63511, 81657, 89397, 99803, 146223, 190533, 244971, 299409, 438669, 571599, 698621, 898227, 1714797, 2095863, 2694681, 6287589, 18862767]

約数ペア:

[(1, 18862767), (3, 6287589), (7, 2694681), (9, 2095863), (11, 1714797), (21, 898227), (27, 698621), (33, 571599), (43, 438669), (63, 299409), (77, 244971), (99, 190533), (129, 146223), (189, 99803), (211, 89397), (231, 81657), (297, 63511), (301, 62667), (387, 48741), (473, 39879), (633, 29799), (693, 27219), (903, 20889), (1161, 16247), (1419, 13293), (1477, 12771), (1899, 9933), (2079, 9073), (2321, 8127), (2709, 6963), (3311, 5697), (4257, 4431)]