21775792

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{25679}}^1$

素因数の和:25740

約数の個数: 20

約数和(自身を含む): 42988320

約数和(自身を除く): 21212528

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 25679, 51358, 102716, 205432, 410864, 1360987, 2721974, 5443948, 10887896, 21775792]

約数ペア:

[(1, 21775792), (2, 10887896), (4, 5443948), (8, 2721974), (16, 1360987), (53, 410864), (106, 205432), (212, 102716), (424, 51358), (848, 25679)]