21131266

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{433}}^1\times {\mathrm{1877}}^1$

素因数の和:2325

約数の個数: 16

約数和(自身を含む): 34232184

約数和(自身を除く): 13100918

約数列:

[1, 2, 13, 26, 433, 866, 1877, 3754, 5629, 11258, 24401, 48802, 812741, 1625482, 10565633, 21131266]

約数ペア:

[(1, 21131266), (2, 10565633), (13, 1625482), (26, 812741), (433, 48802), (866, 24401), (1877, 11258), (3754, 5629)]