21279958

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41081}}^1$

素因数の和:41127

約数の個数: 16

約数和(自身を含む): 37466784

約数和(自身を除く): 16186826

約数列:

[1, 2, 7, 14, 37, 74, 259, 518, 41081, 82162, 287567, 575134, 1519997, 3039994, 10639979, 21279958]

約数ペア:

[(1, 21279958), (2, 10639979), (7, 3039994), (14, 1519997), (37, 575134), (74, 287567), (259, 82162), (518, 41081)]