28173299

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:255

約数の個数: 32

約数和(自身を含む): 36765696

約数和(自身を除く): 8592397

約数列:

[1, 7, 11, 43, 67, 77, 127, 301, 469, 473, 737, 889, 1397, 2881, 3311, 5159, 5461, 8509, 9779, 20167, 31691, 38227, 59563, 60071, 93599, 221837, 365887, 420497, 655193, 2561209, 4024757, 28173299]

約数ペア:

[(1, 28173299), (7, 4024757), (11, 2561209), (43, 655193), (67, 420497), (77, 365887), (127, 221837), (301, 93599), (469, 60071), (473, 59563), (737, 38227), (889, 31691), (1397, 20167), (2881, 9779), (3311, 8509), (5159, 5461)]