1978109

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:272

約数の個数: 16

約数和(自身を含む): 2419200

約数和(自身を除く): 441091

約数列:

[1, 7, 19, 107, 133, 139, 749, 973, 2033, 2641, 14231, 14873, 18487, 104111, 282587, 1978109]

約数ペア:

[(1, 1978109), (7, 282587), (19, 104111), (107, 18487), (133, 14873), (139, 14231), (749, 2641), (973, 2033)]