21589616

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{32911}}^1$

素因数の和:32960

約数の個数: 20

約数和(自身を含む): 42851424

約数和(自身を除く): 21261808

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 32911, 65822, 131644, 263288, 526576, 1349351, 2698702, 5397404, 10794808, 21589616]

約数ペア:

[(1, 21589616), (2, 10794808), (4, 5397404), (8, 2698702), (16, 1349351), (41, 526576), (82, 263288), (164, 131644), (328, 65822), (656, 32911)]