18849789

素因数分解:

$3^2\times 7^1\times {\mathrm{433}}^1\times {\mathrm{691}}^1$

素因数の和:1137

約数の個数: 24

約数和(自身を含む): 31234112

約数和(自身を除く): 12384323

約数列:

[1, 3, 7, 9, 21, 63, 433, 691, 1299, 2073, 3031, 3897, 4837, 6219, 9093, 14511, 27279, 43533, 299203, 897609, 2094421, 2692827, 6283263, 18849789]

約数ペア:

[(1, 18849789), (3, 6283263), (7, 2692827), (9, 2094421), (21, 897609), (63, 299203), (433, 43533), (691, 27279), (1299, 14511), (2073, 9093), (3031, 6219), (3897, 4837)]