20495805

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4007}}^1$

素因数の和:4057

約数の個数: 32

約数和(自身を含む): 36937728

約数和(自身を除く): 16441923

約数列:

[1, 3, 5, 11, 15, 31, 33, 55, 93, 155, 165, 341, 465, 1023, 1705, 4007, 5115, 12021, 20035, 44077, 60105, 124217, 132231, 220385, 372651, 621085, 661155, 1366387, 1863255, 4099161, 6831935, 20495805]

約数ペア:

[(1, 20495805), (3, 6831935), (5, 4099161), (11, 1863255), (15, 1366387), (31, 661155), (33, 621085), (55, 372651), (93, 220385), (155, 132231), (165, 124217), (341, 60105), (465, 44077), (1023, 20035), (1705, 12021), (4007, 5115)]