2100072009

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1408499}}^1$

素因数の和:1408580

約数の個数: 16

約数和(自身を含む): 3245184000

約数和(自身を除く): 1145111991

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 1408499, 4225497, 9859493, 29578479, 100003429, 300010287, 700024003, 2100072009]

約数ペア:

[(1, 2100072009), (3, 700024003), (7, 300010287), (21, 100003429), (71, 29578479), (213, 9859493), (497, 4225497), (1491, 1408499)]