19540976

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{13421}}^1$

素因数の和:13449

約数の個数: 40

約数和(自身を含む): 46601184

約数和(自身を除く): 27060208

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 13421, 26842, 53684, 93947, 107368, 174473, 187894, 214736, 348946, 375788, 697892, 751576, 1221311, 1395784, 1503152, 2442622, 2791568, 4885244, 9770488, 19540976]

約数ペア:

[(1, 19540976), (2, 9770488), (4, 4885244), (7, 2791568), (8, 2442622), (13, 1503152), (14, 1395784), (16, 1221311), (26, 751576), (28, 697892), (52, 375788), (56, 348946), (91, 214736), (104, 187894), (112, 174473), (182, 107368), (208, 93947), (364, 53684), (728, 26842), (1456, 13421)]