19772164

素因数分解:

$2^2\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{449}}^1$

素因数の和:663

約数の個数: 24

約数和(自身を含む): 35343000

約数和(自身を除く): 15570836

約数列:

[1, 2, 4, 101, 109, 202, 218, 404, 436, 449, 898, 1796, 11009, 22018, 44036, 45349, 48941, 90698, 97882, 181396, 195764, 4943041, 9886082, 19772164]

約数ペア:

[(1, 19772164), (2, 9886082), (4, 4943041), (101, 195764), (109, 181396), (202, 97882), (218, 90698), (404, 48941), (436, 45349), (449, 44036), (898, 22018), (1796, 11009)]