16117521

素因数分解:

$3^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{1321}}^1$

素因数の和:1421

約数の個数: 24

約数和(自身を含む): 25318944

約数和(自身を除く): 9201423

約数列:

[1, 3, 7, 21, 49, 83, 147, 249, 581, 1321, 1743, 3963, 4067, 9247, 12201, 27741, 64729, 109643, 194187, 328929, 767501, 2302503, 5372507, 16117521]

約数ペア:

[(1, 16117521), (3, 5372507), (7, 2302503), (21, 767501), (49, 328929), (83, 194187), (147, 109643), (249, 64729), (581, 27741), (1321, 12201), (1743, 9247), (3963, 4067)]