20841541

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{4073}}^1$

素因数の和:4140

約数の個数: 16

約数和(自身を含む): 25812864

約数和(自身を除く): 4971323

約数列:

[1, 7, 17, 43, 119, 301, 731, 4073, 5117, 28511, 69241, 175139, 484687, 1225973, 2977363, 20841541]

約数ペア:

[(1, 20841541), (7, 2977363), (17, 1225973), (43, 484687), (119, 175139), (301, 69241), (731, 28511), (4073, 5117)]