19909306

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{443}}^1\times {\mathrm{977}}^1$

素因数の和:1445

約数の個数: 16

約数和(自身を含む): 31264704

約数和(自身を除く): 11355398

約数列:

[1, 2, 23, 46, 443, 886, 977, 1954, 10189, 20378, 22471, 44942, 432811, 865622, 9954653, 19909306]

約数ペア:

[(1, 19909306), (2, 9954653), (23, 865622), (46, 432811), (443, 44942), (886, 22471), (977, 20378), (1954, 10189)]