21262354

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{1303}}^1$

素因数の和:1545

約数の個数: 16

約数和(自身を含む): 32860800

約数和(自身を除く): 11598446

約数列:

[1, 2, 41, 82, 199, 398, 1303, 2606, 8159, 16318, 53423, 106846, 259297, 518594, 10631177, 21262354]

約数ペア:

[(1, 21262354), (2, 10631177), (41, 518594), (82, 259297), (199, 106846), (398, 53423), (1303, 16318), (2606, 8159)]