689337

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{211}}^1$

素因数の和:242

約数の個数: 24

約数和(自身を含む): 1127840

約数和(自身を除く): 438503

約数列:

[1, 3, 9, 11, 27, 33, 99, 121, 211, 297, 363, 633, 1089, 1899, 2321, 3267, 5697, 6963, 20889, 25531, 62667, 76593, 229779, 689337]

約数ペア:

[(1, 689337), (3, 229779), (9, 76593), (11, 62667), (27, 25531), (33, 20889), (99, 6963), (121, 5697), (211, 3267), (297, 2321), (363, 1899), (633, 1089)]