20802929

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{2203}}^1$

素因数の和:2300

約数の個数: 16

約数和(自身を含む): 25390080

約数和(自身を除く): 4587151

約数列:

[1, 7, 19, 71, 133, 497, 1349, 2203, 9443, 15421, 41857, 156413, 292999, 1094891, 2971847, 20802929]

約数ペア:

[(1, 20802929), (7, 2971847), (19, 1094891), (71, 292999), (133, 156413), (497, 41857), (1349, 15421), (2203, 9443)]