20682915

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{1217}}^1$

素因数の和:1339

約数の個数: 32

約数和(自身を含む): 36481536

約数和(自身を除く): 15798621

約数列:

[1, 3, 5, 11, 15, 33, 55, 103, 165, 309, 515, 1133, 1217, 1545, 3399, 3651, 5665, 6085, 13387, 16995, 18255, 40161, 66935, 125351, 200805, 376053, 626755, 1378861, 1880265, 4136583, 6894305, 20682915]

約数ペア:

[(1, 20682915), (3, 6894305), (5, 4136583), (11, 1880265), (15, 1378861), (33, 626755), (55, 376053), (103, 200805), (165, 125351), (309, 66935), (515, 40161), (1133, 18255), (1217, 16995), (1545, 13387), (3399, 6085), (3651, 5665)]