9989203

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:378

約数の個数: 16

約数和(自身を含む): 11750400

約数和(自身を除く): 1761197

約数列:

[1, 7, 71, 101, 199, 497, 707, 1393, 7171, 14129, 20099, 50197, 98903, 140693, 1427029, 9989203]

約数ペア:

[(1, 9989203), (7, 1427029), (71, 140693), (101, 98903), (199, 50197), (497, 20099), (707, 14129), (1393, 7171)]