420497

素因数分解:

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

素因数の和:188

約数の個数: 16

約数和(自身を含む): 540672

約数和(自身を除く): 120175

約数列:

[1, 7, 11, 43, 77, 127, 301, 473, 889, 1397, 3311, 5461, 9779, 38227, 60071, 420497]

約数ペア:

[(1, 420497), (7, 60071), (11, 38227), (43, 9779), (77, 5461), (127, 3311), (301, 1397), (473, 889)]