221520004

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{10141}}^1$

素因数の和:10315

約数の個数: 24

約数和(自身を含む): 399838208

約数和(自身を除く): 178318204

約数列:

[1, 2, 4, 43, 86, 127, 172, 254, 508, 5461, 10141, 10922, 20282, 21844, 40564, 436063, 872126, 1287907, 1744252, 2575814, 5151628, 55380001, 110760002, 221520004]

約数ペア:

[(1, 221520004), (2, 110760002), (4, 55380001), (43, 5151628), (86, 2575814), (127, 1744252), (172, 1287907), (254, 872126), (508, 436063), (5461, 40564), (10141, 21844), (10922, 20282)]