18863369

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{2161}}^1$

素因数の和:2240

約数の個数: 16

約数和(自身を含む): 22830720

約数和(自身を除く): 3967351

約数列:

[1, 7, 29, 43, 203, 301, 1247, 2161, 8729, 15127, 62669, 92923, 438683, 650461, 2694767, 18863369]

約数ペア:

[(1, 18863369), (7, 2694767), (29, 650461), (43, 438683), (203, 92923), (301, 62669), (1247, 15127), (2161, 8729)]