18117489

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{193}}^1$

素因数の和:321

約数の個数: 32

約数和(自身を含む): 27377280

約数和(自身を除く): 9259791

約数列:

[1, 3, 13, 29, 39, 83, 87, 193, 249, 377, 579, 1079, 1131, 2407, 2509, 3237, 5597, 7221, 7527, 16019, 16791, 31291, 48057, 72761, 93873, 208247, 218283, 464551, 624741, 1393653, 6039163, 18117489]

約数ペア:

[(1, 18117489), (3, 6039163), (13, 1393653), (29, 624741), (39, 464551), (83, 218283), (87, 208247), (193, 93873), (249, 72761), (377, 48057), (579, 31291), (1079, 16791), (1131, 16019), (2407, 7527), (2509, 7221), (3237, 5597)]