21172537945

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{10507463}}^1$

素因数の和:10507512

約数の個数: 16

約数和(自身を含む): 28244063232

約数和(自身を除く): 7071525287

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 10507463, 52537315, 136597019, 325731353, 682985095, 1628656765, 4234507589, 21172537945]

約数ペア:

[(1, 21172537945), (5, 4234507589), (13, 1628656765), (31, 682985095), (65, 325731353), (155, 136597019), (403, 52537315), (2015, 10507463)]