21167192853

素因数分解:

$3^2\times {\mathrm{149}}^1\times {\mathrm{15784633}}^1$

素因数の和:15784788

約数の個数: 12

約数和(自身を含む): 30780036300

約数和(自身を除く): 9612843447

約数列:

[1, 3, 9, 149, 447, 1341, 15784633, 47353899, 142061697, 2351910317, 7055730951, 21167192853]

約数ペア:

[(1, 21167192853), (3, 7055730951), (9, 2351910317), (149, 142061697), (447, 47353899), (1341, 15784633)]