21817816

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{30643}}^1$

素因数の和:30738

約数の個数: 16

約数和(自身を含む): 41369400

約数和(自身を除く): 19551584

約数列:

[1, 2, 4, 8, 89, 178, 356, 712, 30643, 61286, 122572, 245144, 2727227, 5454454, 10908908, 21817816]

約数ペア:

[(1, 21817816), (2, 10908908), (4, 5454454), (8, 2727227), (89, 245144), (178, 122572), (356, 61286), (712, 30643)]