20580795

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{26903}}^1$

素因数の和:26931

約数の個数: 24

約数和(自身を含む): 37773216

約数和(自身を除く): 17192421

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 26903, 80709, 134515, 242127, 403545, 457351, 1210635, 1372053, 2286755, 4116159, 6860265, 20580795]

約数ペア:

[(1, 20580795), (3, 6860265), (5, 4116159), (9, 2286755), (15, 1372053), (17, 1210635), (45, 457351), (51, 403545), (85, 242127), (153, 134515), (255, 80709), (765, 26903)]