18697952

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6421}}^1$

素因数の和:6451

約数の個数: 48

約数和(自身を含む): 45313632

約数和(自身を除く): 26615680

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 6421, 12842, 25684, 44947, 51368, 83473, 89894, 102736, 166946, 179788, 205472, 333892, 359576, 584311, 667784, 719152, 1168622, 1335568, 1438304, 2337244, 2671136, 4674488, 9348976, 18697952]

約数ペア:

[(1, 18697952), (2, 9348976), (4, 4674488), (7, 2671136), (8, 2337244), (13, 1438304), (14, 1335568), (16, 1168622), (26, 719152), (28, 667784), (32, 584311), (52, 359576), (56, 333892), (91, 205472), (104, 179788), (112, 166946), (182, 102736), (208, 89894), (224, 83473), (364, 51368), (416, 44947), (728, 25684), (1456, 12842), (2912, 6421)]