18921000985

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{938309}}^1$

素因数の和:938460

約数の個数: 16

約数和(自身を含む): 23532814800

約数和(自身を除く): 4611813815

約数列:

[1, 5, 37, 109, 185, 545, 4033, 20165, 938309, 4691545, 34717433, 102275681, 173587165, 511378405, 3784200197, 18921000985]

約数ペア:

[(1, 18921000985), (5, 3784200197), (37, 511378405), (109, 173587165), (185, 102275681), (545, 34717433), (4033, 4691545), (20165, 938309)]