21910521

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{5479}}^1$

素因数の和:5556

約数の個数: 16

約数和(自身を含む): 30863360

約数和(自身を除く): 8952839

約数列:

[1, 3, 31, 43, 93, 129, 1333, 3999, 5479, 16437, 169849, 235597, 509547, 706791, 7303507, 21910521]

約数ペア:

[(1, 21910521), (3, 7303507), (31, 706791), (43, 509547), (93, 235597), (129, 169849), (1333, 16437), (3999, 5479)]