1257239571

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{430709}}^1$

素因数の和:430858

約数の個数: 16

約数和(自身を含む): 1929580800

約数和(自身を除く): 672341229

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 430709, 1292127, 3014963, 9044889, 59868551, 179605653, 419079857, 1257239571]

約数ペア:

[(1, 1257239571), (3, 419079857), (7, 179605653), (21, 59868551), (139, 9044889), (417, 3014963), (973, 1292127), (2919, 430709)]