20009859

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{2539}}^1$

素因数の和:2650

約数の個数: 16

約数和(自身を含む): 27797760

約数和(自身を除く): 7787901

約数列:

[1, 3, 37, 71, 111, 213, 2539, 2627, 7617, 7881, 93943, 180269, 281829, 540807, 6669953, 20009859]

約数ペア:

[(1, 20009859), (3, 6669953), (37, 540807), (71, 281829), (111, 180269), (213, 93943), (2539, 7881), (2627, 7617)]