188889239

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{641}}^1$

素因数の和:791

約数の個数: 32

約数和(自身を含む): 244062720

約数和(自身を除く): 55173481

約数列:

[1, 7, 11, 43, 77, 89, 301, 473, 623, 641, 979, 3311, 3827, 4487, 6853, 7051, 26789, 27563, 42097, 49357, 57049, 192941, 294679, 303193, 399343, 627539, 2122351, 2453107, 4392773, 17171749, 26984177, 188889239]

約数ペア:

[(1, 188889239), (7, 26984177), (11, 17171749), (43, 4392773), (77, 2453107), (89, 2122351), (301, 627539), (473, 399343), (623, 303193), (641, 294679), (979, 192941), (3311, 57049), (3827, 49357), (4487, 42097), (6853, 27563), (7051, 26789)]