19866495

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6337}}^1$

素因数の和:6375

約数の個数: 32

約数和(自身を含む): 36506880

約数和(自身を除く): 16640385

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 95, 165, 209, 285, 627, 1045, 3135, 6337, 19011, 31685, 69707, 95055, 120403, 209121, 348535, 361209, 602015, 1045605, 1324433, 1806045, 3973299, 6622165, 19866495]

約数ペア:

[(1, 19866495), (3, 6622165), (5, 3973299), (11, 1806045), (15, 1324433), (19, 1045605), (33, 602015), (55, 361209), (57, 348535), (95, 209121), (165, 120403), (209, 95055), (285, 69707), (627, 31685), (1045, 19011), (3135, 6337)]