18171918

素因数分解:

$2^1\times 3^3\times {\mathrm{487}}^1\times {\mathrm{691}}^1$

素因数の和:1189

約数の個数: 32

約数和(自身を含む): 40523520

約数和(自身を除く): 22351602

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 487, 691, 974, 1382, 1461, 2073, 2922, 4146, 4383, 6219, 8766, 12438, 13149, 18657, 26298, 37314, 336517, 673034, 1009551, 2019102, 3028653, 6057306, 9085959, 18171918]

約数ペア:

[(1, 18171918), (2, 9085959), (3, 6057306), (6, 3028653), (9, 2019102), (18, 1009551), (27, 673034), (54, 336517), (487, 37314), (691, 26298), (974, 18657), (1382, 13149), (1461, 12438), (2073, 8766), (2922, 6219), (4146, 4383)]