21377072

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{32587}}^1$

素因数の和:32636

約数の個数: 20

約数和(自身を含む): 42429576

約数和(自身を除く): 21052504

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 32587, 65174, 130348, 260696, 521392, 1336067, 2672134, 5344268, 10688536, 21377072]

約数ペア:

[(1, 21377072), (2, 10688536), (4, 5344268), (8, 2672134), (16, 1336067), (41, 521392), (82, 260696), (164, 130348), (328, 65174), (656, 32587)]