20217395

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{3253}}^1$

素因数の和:3382

約数の個数: 16

約数和(自身を含む): 26708832

約数和(自身を除く): 6491437

約数列:

[1, 5, 11, 55, 113, 565, 1243, 3253, 6215, 16265, 35783, 178915, 367589, 1837945, 4043479, 20217395]

約数ペア:

[(1, 20217395), (5, 4043479), (11, 1837945), (55, 367589), (113, 178915), (565, 35783), (1243, 16265), (3253, 6215)]