21896007

素因数分解:

$3^1\times 7^1\times {\mathrm{487}}^1\times {\mathrm{2141}}^1$

素因数の和:2638

約数の個数: 16

約数和(自身を含む): 33449472

約数和(自身を除く): 11553465

約数列:

[1, 3, 7, 21, 487, 1461, 2141, 3409, 6423, 10227, 14987, 44961, 1042667, 3128001, 7298669, 21896007]

約数ペア:

[(1, 21896007), (3, 7298669), (7, 3128001), (21, 1042667), (487, 44961), (1461, 14987), (2141, 10227), (3409, 6423)]