251036191

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{21961}}^1$

素因数の和:22062

約数の個数: 16

約数和(自身を含む): 303602688

約数和(自身を除く): 52566497

約数列:

[1, 7, 23, 71, 161, 497, 1633, 11431, 21961, 153727, 505103, 1559231, 3535721, 10914617, 35862313, 251036191]

約数ペア:

[(1, 251036191), (7, 35862313), (23, 10914617), (71, 3535721), (161, 1559231), (497, 505103), (1633, 153727), (11431, 21961)]