20923636

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 19718924

約数列:

[1, 2, 4, 19, 31, 38, 62, 76, 83, 107, 124, 166, 214, 332, 428, 589, 1178, 1577, 2033, 2356, 2573, 3154, 3317, 4066, 5146, 6308, 6634, 8132, 8881, 10292, 13268, 17762, 35524, 48887, 63023, 97774, 126046, 168739, 195548, 252092, 275311, 337478, 550622, 674956, 1101244, 5230909, 10461818, 20923636]

約数ペア:

[(1, 20923636), (2, 10461818), (4, 5230909), (19, 1101244), (31, 674956), (38, 550622), (62, 337478), (76, 275311), (83, 252092), (107, 195548), (124, 168739), (166, 126046), (214, 97774), (332, 63023), (428, 48887), (589, 35524), (1178, 17762), (1577, 13268), (2033, 10292), (2356, 8881), (2573, 8132), (3154, 6634), (3317, 6308), (4066, 5146)]