21997288

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{144719}}^1$

素因数の和:144744

約数の個数: 16

約数和(自身を含む): 43416000

約数和(自身を除く): 21418712

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 144719, 289438, 578876, 1157752, 2749661, 5499322, 10998644, 21997288]

約数ペア:

[(1, 21997288), (2, 10998644), (4, 5499322), (8, 2749661), (19, 1157752), (38, 578876), (76, 289438), (152, 144719)]