221047057

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{709}}^1\times {\mathrm{4049}}^1$

素因数の和:4776

約数の個数: 16

約数和(自身を含む): 276048000

約数和(自身を除く): 55000943

約数列:

[1, 7, 11, 77, 709, 4049, 4963, 7799, 28343, 44539, 54593, 311773, 2870741, 20095187, 31578151, 221047057]

約数ペア:

[(1, 221047057), (7, 31578151), (11, 20095187), (77, 2870741), (709, 311773), (4049, 54593), (4963, 44539), (7799, 28343)]