81461338

素因数分解:

$2^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{20707}}^1$

素因数の和:20997

約数の個数: 16

約数和(自身を含む): 140151744

約数和(自身を除く): 58690406

約数列:

[1, 2, 7, 14, 281, 562, 1967, 3934, 20707, 41414, 144949, 289898, 5818667, 11637334, 40730669, 81461338]

約数ペア:

[(1, 81461338), (2, 40730669), (7, 11637334), (14, 5818667), (281, 289898), (562, 144949), (1967, 41414), (3934, 20707)]