21965432

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{63853}}^1$

素因数の和:63902

約数の個数: 16

約数和(自身を含む): 42143640

約数和(自身を除く): 20178208

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 63853, 127706, 255412, 510824, 2745679, 5491358, 10982716, 21965432]

約数ペア:

[(1, 21965432), (2, 10982716), (4, 5491358), (8, 2745679), (43, 510824), (86, 255412), (172, 127706), (344, 63853)]