20998563

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{9817}}^1$

素因数の和:9874

約数の個数: 16

約数和(自身を含む): 30160896

約数和(自身を除く): 9162333

約数列:

[1, 3, 23, 31, 69, 93, 713, 2139, 9817, 29451, 225791, 304327, 677373, 912981, 6999521, 20998563]

約数ペア:

[(1, 20998563), (3, 6999521), (23, 912981), (31, 677373), (69, 304327), (93, 225791), (713, 29451), (2139, 9817)]