19998922

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{499}}^1\times {\mathrm{691}}^1$

素因数の和:1221

約数の個数: 16

約数和(自身を含む): 31140000

約数和(自身を除く): 11141078

約数列:

[1, 2, 29, 58, 499, 691, 998, 1382, 14471, 20039, 28942, 40078, 344809, 689618, 9999461, 19998922]

約数ペア:

[(1, 19998922), (2, 9999461), (29, 689618), (58, 344809), (499, 40078), (691, 28942), (998, 20039), (1382, 14471)]