27981731

素因数分解:

${\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1$

素因数の和:442

約数の個数: 16

約数和(自身を含む): 30336768

約数和(自身を除く): 2355037

約数列:

[1, 23, 37, 131, 251, 851, 3013, 4847, 5773, 9287, 32881, 111481, 213601, 756263, 1216597, 27981731]

約数ペア:

[(1, 27981731), (23, 1216597), (37, 756263), (131, 213601), (251, 111481), (851, 32881), (3013, 9287), (4847, 5773)]