21003666

素因数分解:

$2^1\times 3^1\times {\mathrm{389}}^1\times {\mathrm{8999}}^1$

素因数の和:9393

約数の個数: 16

約数和(自身を含む): 42120000

約数和(自身を除く): 21116334

約数列:

[1, 2, 3, 6, 389, 778, 1167, 2334, 8999, 17998, 26997, 53994, 3500611, 7001222, 10501833, 21003666]

約数ペア:

[(1, 21003666), (2, 10501833), (3, 7001222), (6, 3500611), (389, 53994), (778, 26997), (1167, 17998), (2334, 8999)]