20844568

素因数分解:

$2^3\times {\mathrm{509}}^1\times {\mathrm{5119}}^1$

素因数の和:5634

約数の個数: 16

約数和(自身を含む): 39168000

約数和(自身を除く): 18323432

約数列:

[1, 2, 4, 8, 509, 1018, 2036, 4072, 5119, 10238, 20476, 40952, 2605571, 5211142, 10422284, 20844568]

約数ペア:

[(1, 20844568), (2, 10422284), (4, 5211142), (8, 2605571), (509, 40952), (1018, 20476), (2036, 10238), (4072, 5119)]