19757667

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:243

約数の個数: 32

約数和(自身を含む): 28892160

約数和(自身を除く): 9134493

約数列:

[1, 3, 23, 37, 69, 71, 109, 111, 213, 327, 851, 1633, 2507, 2553, 2627, 4033, 4899, 7521, 7739, 7881, 12099, 23217, 60421, 92759, 177997, 181263, 278277, 286343, 533991, 859029, 6585889, 19757667]

約数ペア:

[(1, 19757667), (3, 6585889), (23, 859029), (37, 533991), (69, 286343), (71, 278277), (109, 181263), (111, 177997), (213, 92759), (327, 60421), (851, 23217), (1633, 12099), (2507, 7881), (2553, 7739), (2627, 7521), (4033, 4899)]