20505945

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{33343}}^1$

素因数の和:33392

約数の個数: 16

約数和(自身を含む): 33610752

約数和(自身を除く): 13104807

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 33343, 100029, 166715, 500145, 1367063, 4101189, 6835315, 20505945]

約数ペア:

[(1, 20505945), (3, 6835315), (5, 4101189), (15, 1367063), (41, 500145), (123, 166715), (205, 100029), (615, 33343)]