21888424

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{66733}}^1$

素因数の和:66780

約数の個数: 16

約数和(自身を含む): 42042420

約数和(自身を除く): 20153996

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 66733, 133466, 266932, 533864, 2736053, 5472106, 10944212, 21888424]

約数ペア:

[(1, 21888424), (2, 10944212), (4, 5472106), (8, 2736053), (41, 533864), (82, 266932), (164, 133466), (328, 66733)]