2289981

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:308

約数の個数: 16

約数和(自身を含む): 3168000

約数和(自身を除く): 878019

約数列:

[1, 3, 47, 109, 141, 149, 327, 447, 5123, 7003, 15369, 16241, 21009, 48723, 763327, 2289981]

約数ペア:

[(1, 2289981), (3, 763327), (47, 48723), (109, 21009), (141, 16241), (149, 15369), (327, 7003), (447, 5123)]