18538488

素因数分解:

$2^3\times 3^2\times {\mathrm{197}}^1\times {\mathrm{1307}}^1$

素因数の和:1516

約数の個数: 48

約数和(自身を含む): 50501880

約数和(自身を除く): 31963392

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 197, 394, 591, 788, 1182, 1307, 1576, 1773, 2364, 2614, 3546, 3921, 4728, 5228, 7092, 7842, 10456, 11763, 14184, 15684, 23526, 31368, 47052, 94104, 257479, 514958, 772437, 1029916, 1544874, 2059832, 2317311, 3089748, 4634622, 6179496, 9269244, 18538488]

約数ペア:

[(1, 18538488), (2, 9269244), (3, 6179496), (4, 4634622), (6, 3089748), (8, 2317311), (9, 2059832), (12, 1544874), (18, 1029916), (24, 772437), (36, 514958), (72, 257479), (197, 94104), (394, 47052), (591, 31368), (788, 23526), (1182, 15684), (1307, 14184), (1576, 11763), (1773, 10456), (2364, 7842), (2614, 7092), (3546, 5228), (3921, 4728)]