1981402

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:321

約数の個数: 16

約数和(自身を含む): 3069000

約数和(自身を除く): 1087598

約数列:

[1, 2, 61, 109, 122, 149, 218, 298, 6649, 9089, 13298, 16241, 18178, 32482, 990701, 1981402]

約数ペア:

[(1, 1981402), (2, 990701), (61, 32482), (109, 18178), (122, 16241), (149, 13298), (218, 9089), (298, 6649)]