21201656

素因数分解:

$2^3\times 7^1\times {\mathrm{378601}}^1$

素因数の和:378614

約数の個数: 16

約数和(自身を含む): 45432240

約数和(自身を除く): 24230584

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 378601, 757202, 1514404, 2650207, 3028808, 5300414, 10600828, 21201656]

約数ペア:

[(1, 21201656), (2, 10600828), (4, 5300414), (7, 3028808), (8, 2650207), (14, 1514404), (28, 757202), (56, 378601)]