21919466

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{2131}}^1$

素因数の和:2309

約数の個数: 16

約数和(自身を含む): 34026720

約数和(自身を除く): 12107254

約数列:

[1, 2, 37, 74, 139, 278, 2131, 4262, 5143, 10286, 78847, 157694, 296209, 592418, 10959733, 21919466]

約数ペア:

[(1, 21919466), (2, 10959733), (37, 592418), (74, 296209), (139, 157694), (278, 78847), (2131, 10286), (4262, 5143)]