21207626

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{15803}}^1$

素因数の和:15877

約数の個数: 16

約数和(自身を含む): 35274528

約数和(自身を除く): 14066902

約数列:

[1, 2, 11, 22, 61, 122, 671, 1342, 15803, 31606, 173833, 347666, 963983, 1927966, 10603813, 21207626]

約数ペア:

[(1, 21207626), (2, 10603813), (11, 1927966), (22, 963983), (61, 347666), (122, 173833), (671, 31606), (1342, 15803)]