21864005

素因数分解:

$5^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1\times {\mathrm{193}}^1$

素因数の和:500

約数の個数: 16

約数和(自身を含む): 26725440

約数和(自身を除く): 4861435

約数列:

[1, 5, 139, 163, 193, 695, 815, 965, 22657, 26827, 31459, 113285, 134135, 157295, 4372801, 21864005]

約数ペア:

[(1, 21864005), (5, 4372801), (139, 157295), (163, 134135), (193, 113285), (695, 31459), (815, 26827), (965, 22657)]