21215152

素因数分解:

$2^4\times 7^1\times {\mathrm{189421}}^1$

素因数の和:189436

約数の個数: 20

約数和(自身を含む): 46976656

約数和(自身を除く): 25761504

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 189421, 378842, 757684, 1325947, 1515368, 2651894, 3030736, 5303788, 10607576, 21215152]

約数ペア:

[(1, 21215152), (2, 10607576), (4, 5303788), (7, 3030736), (8, 2651894), (14, 1515368), (16, 1325947), (28, 757684), (56, 378842), (112, 189421)]