20767455

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9049}}^1$

素因数の和:9080

約数の個数: 32

約数和(自身を含む): 39096000

約数和(自身を除く): 18328545

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 9049, 27147, 45245, 81441, 135735, 153833, 244323, 407205, 461499, 769165, 1221615, 1384497, 2307495, 4153491, 6922485, 20767455]

約数ペア:

[(1, 20767455), (3, 6922485), (5, 4153491), (9, 2307495), (15, 1384497), (17, 1221615), (27, 769165), (45, 461499), (51, 407205), (85, 244323), (135, 153833), (153, 135735), (255, 81441), (459, 45245), (765, 27147), (2295, 9049)]