19801005

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{11093}}^1$

素因数の和:11125

約数の個数: 32

約数和(自身を含む): 38340864

約数和(自身を除く): 18539859

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 255, 357, 595, 1785, 11093, 33279, 55465, 77651, 166395, 188581, 232953, 388255, 565743, 942905, 1164765, 1320067, 2828715, 3960201, 6600335, 19801005]

約数ペア:

[(1, 19801005), (3, 6600335), (5, 3960201), (7, 2828715), (15, 1320067), (17, 1164765), (21, 942905), (35, 565743), (51, 388255), (85, 232953), (105, 188581), (119, 166395), (255, 77651), (357, 55465), (595, 33279), (1785, 11093)]