20378826

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1193}}^1$

素因数の和:1287

約数の個数: 48

約数和(自身を含む): 48242376

約数和(自身を除く): 27863550

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 73, 78, 117, 146, 219, 234, 438, 657, 949, 1193, 1314, 1898, 2386, 2847, 3579, 5694, 7158, 8541, 10737, 15509, 17082, 21474, 31018, 46527, 87089, 93054, 139581, 174178, 261267, 279162, 522534, 783801, 1132157, 1567602, 2264314, 3396471, 6792942, 10189413, 20378826]

約数ペア:

[(1, 20378826), (2, 10189413), (3, 6792942), (6, 3396471), (9, 2264314), (13, 1567602), (18, 1132157), (26, 783801), (39, 522534), (73, 279162), (78, 261267), (117, 174178), (146, 139581), (219, 93054), (234, 87089), (438, 46527), (657, 31018), (949, 21474), (1193, 17082), (1314, 15509), (1898, 10737), (2386, 8541), (2847, 7158), (3579, 5694)]