18806667

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{103}}^1\times {\mathrm{503}}^1$

素因数の和:631

約数の個数: 24

約数和(自身を含む): 27885312

約数和(自身を除く): 9078645

約数列:

[1, 3, 11, 33, 103, 121, 309, 363, 503, 1133, 1509, 3399, 5533, 12463, 16599, 37389, 51809, 60863, 155427, 182589, 569899, 1709697, 6268889, 18806667]

約数ペア:

[(1, 18806667), (3, 6268889), (11, 1709697), (33, 569899), (103, 182589), (121, 155427), (309, 60863), (363, 51809), (503, 37389), (1133, 16599), (1509, 12463), (3399, 5533)]