20268976

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{13921}}^1$

素因数の和:13949

約数の個数: 40

約数和(自身を含む): 48337184

約数和(自身を除く): 28068208

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 13921, 27842, 55684, 97447, 111368, 180973, 194894, 222736, 361946, 389788, 723892, 779576, 1266811, 1447784, 1559152, 2533622, 2895568, 5067244, 10134488, 20268976]

約数ペア:

[(1, 20268976), (2, 10134488), (4, 5067244), (7, 2895568), (8, 2533622), (13, 1559152), (14, 1447784), (16, 1266811), (26, 779576), (28, 723892), (52, 389788), (56, 361946), (91, 222736), (104, 194894), (112, 180973), (182, 111368), (208, 97447), (364, 55684), (728, 27842), (1456, 13921)]