20998744

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{201911}}^1$

素因数の和:201930

約数の個数: 16

約数和(自身を含む): 42401520

約数和(自身を除く): 21402776

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 201911, 403822, 807644, 1615288, 2624843, 5249686, 10499372, 20998744]

約数ペア:

[(1, 20998744), (2, 10499372), (4, 5249686), (8, 2624843), (13, 1615288), (26, 807644), (52, 403822), (104, 201911)]