21573872

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{32887}}^1$

素因数の和:32936

約数の個数: 20

約数和(自身を含む): 42820176

約数和(自身を除く): 21246304

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 32887, 65774, 131548, 263096, 526192, 1348367, 2696734, 5393468, 10786936, 21573872]

約数ペア:

[(1, 21573872), (2, 10786936), (4, 5393468), (8, 2696734), (16, 1348367), (41, 526192), (82, 263096), (164, 131548), (328, 65774), (656, 32887)]