20808345481

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1\times {\mathrm{27851}}^1$

素因数の和:28213

約数の個数: 32

約数和(自身を含む): 26866262016

約数和(自身を除く): 6057916535

約数列:

[1, 7, 11, 31, 77, 217, 313, 341, 2191, 2387, 3443, 9703, 24101, 27851, 67921, 106733, 194957, 306361, 747131, 863381, 2144527, 6043667, 8717363, 9497191, 61021541, 66480337, 95890993, 270238253, 671236951, 1891667771, 2972620783, 20808345481]

約数ペア:

[(1, 20808345481), (7, 2972620783), (11, 1891667771), (31, 671236951), (77, 270238253), (217, 95890993), (313, 66480337), (341, 61021541), (2191, 9497191), (2387, 8717363), (3443, 6043667), (9703, 2144527), (24101, 863381), (27851, 747131), (67921, 306361), (106733, 194957)]