8678187

素因数分解:

$3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{991}}^1$

素因数の和:1143

約数の個数: 24

約数和(自身を含む): 14443520

約数和(自身を除く): 5765333

約数列:

[1, 3, 7, 9, 21, 63, 139, 417, 973, 991, 1251, 2919, 2973, 6937, 8757, 8919, 20811, 62433, 137749, 413247, 964243, 1239741, 2892729, 8678187]

約数ペア:

[(1, 8678187), (3, 2892729), (7, 1239741), (9, 964243), (21, 413247), (63, 137749), (139, 62433), (417, 20811), (973, 8919), (991, 8757), (1251, 6937), (2919, 2973)]