18756385

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{3793}}^1$

素因数の和:3864

約数の個数: 16

約数和(自身を含む): 24038784

約数和(自身を除く): 5282399

約数列:

[1, 5, 23, 43, 115, 215, 989, 3793, 4945, 18965, 87239, 163099, 436195, 815495, 3751277, 18756385]

約数ペア:

[(1, 18756385), (5, 3751277), (23, 815495), (43, 436195), (115, 163099), (215, 87239), (989, 18965), (3793, 4945)]