81471964

素因数分解:

$2^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{17851}}^1$

素因数の和:18025

約数の個数: 24

約数和(自身を含む): 163952768

約数和(自身を除く): 82480804

約数列:

[1, 2, 4, 7, 14, 28, 163, 326, 652, 1141, 2282, 4564, 17851, 35702, 71404, 124957, 249914, 499828, 2909713, 5819426, 11638852, 20367991, 40735982, 81471964]

約数ペア:

[(1, 81471964), (2, 40735982), (4, 20367991), (7, 11638852), (14, 5819426), (28, 2909713), (163, 499828), (326, 249914), (652, 124957), (1141, 71404), (2282, 35702), (4564, 17851)]