18913455

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2011}}^1$

素因数の和:2052

約数の個数: 48

約数和(自身を含む): 37664640

約数和(自身を除く): 18751185

約数列:

[1, 3, 5, 9, 11, 15, 19, 33, 45, 55, 57, 95, 99, 165, 171, 209, 285, 495, 627, 855, 1045, 1881, 2011, 3135, 6033, 9405, 10055, 18099, 22121, 30165, 38209, 66363, 90495, 110605, 114627, 191045, 199089, 331815, 343881, 420299, 573135, 995445, 1260897, 1719405, 2101495, 3782691, 6304485, 18913455]

約数ペア:

[(1, 18913455), (3, 6304485), (5, 3782691), (9, 2101495), (11, 1719405), (15, 1260897), (19, 995445), (33, 573135), (45, 420299), (55, 343881), (57, 331815), (95, 199089), (99, 191045), (165, 114627), (171, 110605), (209, 90495), (285, 66363), (495, 38209), (627, 30165), (855, 22121), (1045, 18099), (1881, 10055), (2011, 9405), (3135, 6033)]