21580526

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{31643}}^1$

素因数の和:31687

約数の個数: 16

約数和(自身を含む): 36453888

約数和(自身を除く): 14873362

約数列:

[1, 2, 11, 22, 31, 62, 341, 682, 31643, 63286, 348073, 696146, 980933, 1961866, 10790263, 21580526]

約数ペア:

[(1, 21580526), (2, 10790263), (11, 1961866), (22, 980933), (31, 696146), (62, 348073), (341, 63286), (682, 31643)]