2811221

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{919}}^1$

素因数の和:968

約数の個数: 16

約数和(自身を含む): 3532800

約数和(自身を除く): 721579

約数列:

[1, 7, 19, 23, 133, 161, 437, 919, 3059, 6433, 17461, 21137, 122227, 147959, 401603, 2811221]

約数ペア:

[(1, 2811221), (7, 401603), (19, 147959), (23, 122227), (133, 21137), (161, 17461), (437, 6433), (919, 3059)]