18139681

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{467}}^1$

素因数の和:684

約数の個数: 16

約数和(自身を含む): 21565440

約数和(自身を除く): 3425759

約数列:

[1, 7, 31, 179, 217, 467, 1253, 3269, 5549, 14477, 38843, 83593, 101339, 585151, 2591383, 18139681]

約数ペア:

[(1, 18139681), (7, 2591383), (31, 585151), (179, 101339), (217, 83593), (467, 38843), (1253, 14477), (3269, 5549)]