20843115

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{19571}}^1$

素因数の和:19650

約数の個数: 16

約数和(自身を含む): 33820416

約数和(自身を除く): 12977301

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 19571, 58713, 97855, 293565, 1389541, 4168623, 6947705, 20843115]

約数ペア:

[(1, 20843115), (3, 6947705), (5, 4168623), (15, 1389541), (71, 293565), (213, 97855), (355, 58713), (1065, 19571)]