20439755

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{25391}}^1$

素因数の和:25426

約数の個数: 16

約数和(自身を含む): 29251584

約数和(自身を除く): 8811829

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 25391, 126955, 177737, 583993, 888685, 2919965, 4087951, 20439755]

約数ペア:

[(1, 20439755), (5, 4087951), (7, 2919965), (23, 888685), (35, 583993), (115, 177737), (161, 126955), (805, 25391)]