20842425

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{5449}}^1$

素因数の和:5482

約数の個数: 36

約数和(自身を含む): 39534300

約数和(自身を除く): 18691875

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 425, 765, 1275, 3825, 5449, 16347, 27245, 49041, 81735, 92633, 136225, 245205, 277899, 408675, 463165, 833697, 1226025, 1389495, 2315825, 4168485, 6947475, 20842425]

約数ペア:

[(1, 20842425), (3, 6947475), (5, 4168485), (9, 2315825), (15, 1389495), (17, 1226025), (25, 833697), (45, 463165), (51, 408675), (75, 277899), (85, 245205), (153, 136225), (225, 92633), (255, 81735), (425, 49041), (765, 27245), (1275, 16347), (3825, 5449)]