81212621

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{359}}^1\times {\mathrm{1901}}^1$

素因数の和:2284

約数の個数: 16

約数和(自身を含む): 98599680

約数和(自身を除く): 17387059

約数列:

[1, 7, 17, 119, 359, 1901, 2513, 6103, 13307, 32317, 42721, 226219, 682459, 4777213, 11601803, 81212621]

約数ペア:

[(1, 81212621), (7, 11601803), (17, 4777213), (119, 682459), (359, 226219), (1901, 42721), (2513, 32317), (6103, 13307)]