16551775

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1$

素因数の和:315

約数の個数: 24

約数和(自身を含む): 21360240

約数和(自身を除く): 4808465

約数列:

[1, 5, 25, 43, 89, 173, 215, 445, 865, 1075, 2225, 3827, 4325, 7439, 15397, 19135, 37195, 76985, 95675, 185975, 384925, 662071, 3310355, 16551775]

約数ペア:

[(1, 16551775), (5, 3310355), (25, 662071), (43, 384925), (89, 185975), (173, 95675), (215, 76985), (445, 37195), (865, 19135), (1075, 15397), (2225, 7439), (3827, 4325)]