18538245

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2203}}^1$

素因数の和:2242

約数の個数: 48

約数和(自身を含む): 37132992

約数和(自身を除く): 18594747

約数列:

[1, 3, 5, 9, 11, 15, 17, 33, 45, 51, 55, 85, 99, 153, 165, 187, 255, 495, 561, 765, 935, 1683, 2203, 2805, 6609, 8415, 11015, 19827, 24233, 33045, 37451, 72699, 99135, 112353, 121165, 187255, 218097, 337059, 363495, 411961, 561765, 1090485, 1235883, 1685295, 2059805, 3707649, 6179415, 18538245]

約数ペア:

[(1, 18538245), (3, 6179415), (5, 3707649), (9, 2059805), (11, 1685295), (15, 1235883), (17, 1090485), (33, 561765), (45, 411961), (51, 363495), (55, 337059), (85, 218097), (99, 187255), (153, 121165), (165, 112353), (187, 99135), (255, 72699), (495, 37451), (561, 33045), (765, 24233), (935, 19827), (1683, 11015), (2203, 8415), (2805, 6609)]