20206945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{7817}}^1$

素因数の和:7880

約数の個数: 16

約数和(自身を含む): 27019008

約数和(自身を除く): 6812063

約数列:

[1, 5, 11, 47, 55, 235, 517, 2585, 7817, 39085, 85987, 367399, 429935, 1836995, 4041389, 20206945]

約数ペア:

[(1, 20206945), (5, 4041389), (11, 1836995), (47, 429935), (55, 367399), (235, 85987), (517, 39085), (2585, 7817)]