21242798

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{2339}}^1$

素因数の和:2599

約数の個数: 16

約数和(自身を含む): 33696000

約数和(自身を除く): 12453202

約数列:

[1, 2, 19, 38, 239, 478, 2339, 4541, 4678, 9082, 44441, 88882, 559021, 1118042, 10621399, 21242798]

約数ペア:

[(1, 21242798), (2, 10621399), (19, 1118042), (38, 559021), (239, 88882), (478, 44441), (2339, 9082), (4541, 4678)]