19661275

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{577}}^1$

素因数の和:663

約数の個数: 24

約数和(自身を含む): 25801920

約数和(自身を除く): 6140645

約数列:

[1, 5, 25, 29, 47, 145, 235, 577, 725, 1175, 1363, 2885, 6815, 14425, 16733, 27119, 34075, 83665, 135595, 418325, 677975, 786451, 3932255, 19661275]

約数ペア:

[(1, 19661275), (5, 3932255), (25, 786451), (29, 677975), (47, 418325), (145, 135595), (235, 83665), (577, 34075), (725, 27119), (1175, 16733), (1363, 14425), (2885, 6815)]