21854936

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{353}}^1$

素因数の和:539

約数の個数: 32

約数和(自身を含む): 42055200

約数和(自身を除く): 20200264

約数列:

[1, 2, 4, 8, 71, 109, 142, 218, 284, 353, 436, 568, 706, 872, 1412, 2824, 7739, 15478, 25063, 30956, 38477, 50126, 61912, 76954, 100252, 153908, 200504, 307816, 2731867, 5463734, 10927468, 21854936]

約数ペア:

[(1, 21854936), (2, 10927468), (4, 5463734), (8, 2731867), (71, 307816), (109, 200504), (142, 153908), (218, 100252), (284, 76954), (353, 61912), (436, 50126), (568, 38477), (706, 30956), (872, 25063), (1412, 15478), (2824, 7739)]