2171351

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{223}}^1$

素因数の和:350

約数の個数: 16

約数和(自身を含む): 2709504

約数和(自身を除く): 538153

約数列:

[1, 7, 13, 91, 107, 223, 749, 1391, 1561, 2899, 9737, 20293, 23861, 167027, 310193, 2171351]

約数ペア:

[(1, 2171351), (7, 310193), (13, 167027), (91, 23861), (107, 20293), (223, 9737), (749, 2899), (1391, 1561)]