18533645

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:429

約数の個数: 32

約数和(自身を含む): 25872000

約数和(自身を除く): 7338355

約数列:

[1, 5, 13, 19, 43, 65, 95, 215, 247, 349, 559, 817, 1235, 1745, 2795, 4085, 4537, 6631, 10621, 15007, 22685, 33155, 53105, 75035, 86203, 195091, 285133, 431015, 975455, 1425665, 3706729, 18533645]

約数ペア:

[(1, 18533645), (5, 3706729), (13, 1425665), (19, 975455), (43, 431015), (65, 285133), (95, 195091), (215, 86203), (247, 75035), (349, 53105), (559, 33155), (817, 22685), (1235, 15007), (1745, 10621), (2795, 6631), (4085, 4537)]