661149839

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{27919}}^1$

素因数の和:28142

約数の個数: 16

約数和(自身を含む): 804096000

約数和(自身を除く): 142946161

約数列:

[1, 7, 17, 119, 199, 1393, 3383, 23681, 27919, 195433, 474623, 3322361, 5555881, 38891167, 94449977, 661149839]

約数ペア:

[(1, 661149839), (7, 94449977), (17, 38891167), (119, 5555881), (199, 3322361), (1393, 474623), (3383, 195433), (23681, 27919)]