21358232

素因数分解:

$2^3\times 7^1\times {\mathrm{577}}^1\times {\mathrm{661}}^1$

素因数の和:1251

約数の個数: 32

約数和(自身を含む): 45916320

約数和(自身を除く): 24558088

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 577, 661, 1154, 1322, 2308, 2644, 4039, 4616, 4627, 5288, 8078, 9254, 16156, 18508, 32312, 37016, 381397, 762794, 1525588, 2669779, 3051176, 5339558, 10679116, 21358232]

約数ペア:

[(1, 21358232), (2, 10679116), (4, 5339558), (7, 3051176), (8, 2669779), (14, 1525588), (28, 762794), (56, 381397), (577, 37016), (661, 32312), (1154, 18508), (1322, 16156), (2308, 9254), (2644, 8078), (4039, 5288), (4616, 4627)]