1320208211

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{221623}}^1$

素因数の和:221690

約数の個数: 16

約数和(自身を含む): 1616968704

約数和(自身を除く): 296760493

約数列:

[1, 7, 23, 37, 161, 259, 851, 5957, 221623, 1551361, 5097329, 8200051, 35681303, 57400357, 188601173, 1320208211]

約数ペア:

[(1, 1320208211), (7, 188601173), (23, 57400357), (37, 35681303), (161, 8200051), (259, 5097329), (851, 1551361), (5957, 221623)]