2009781921

素因数分解:

$3^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{213149}}^1$

素因数の和:213608

約数の個数: 16

約数和(自身を含む): 3069360000

約数和(自身を除く): 1059578079

約数列:

[1, 3, 7, 21, 449, 1347, 3143, 9429, 213149, 639447, 1492043, 4476129, 95703901, 287111703, 669927307, 2009781921]

約数ペア:

[(1, 2009781921), (3, 669927307), (7, 287111703), (21, 95703901), (449, 4476129), (1347, 1492043), (3143, 639447), (9429, 213149)]