81916009

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{389}}^1\times {\mathrm{449}}^1$

素因数の和:912

約数の個数: 16

約数和(自身を含む): 95472000

約数和(自身を除く): 13555991

約数列:

[1, 7, 67, 389, 449, 469, 2723, 3143, 26063, 30083, 174661, 182441, 210581, 1222627, 11702287, 81916009]

約数ペア:

[(1, 81916009), (7, 11702287), (67, 1222627), (389, 210581), (449, 182441), (469, 174661), (2723, 30083), (3143, 26063)]