17204420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{20981}}^1$

素因数の和:21031

約数の個数: 24

約数和(自身を含む): 37012248

約数和(自身を除く): 19807828

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 20981, 41962, 83924, 104905, 209810, 419620, 860221, 1720442, 3440884, 4301105, 8602210, 17204420]

約数ペア:

[(1, 17204420), (2, 8602210), (4, 4301105), (5, 3440884), (10, 1720442), (20, 860221), (41, 419620), (82, 209810), (164, 104905), (205, 83924), (410, 41962), (820, 20981)]