20505772

素因数分解:

$2^2\times 7^1\times {\mathrm{739}}^1\times {\mathrm{991}}^1$

素因数の和:1741

約数の個数: 24

約数和(自身を含む): 41108480

約数和(自身を除く): 20602708

約数列:

[1, 2, 4, 7, 14, 28, 739, 991, 1478, 1982, 2956, 3964, 5173, 6937, 10346, 13874, 20692, 27748, 732349, 1464698, 2929396, 5126443, 10252886, 20505772]

約数ペア:

[(1, 20505772), (2, 10252886), (4, 5126443), (7, 2929396), (14, 1464698), (28, 732349), (739, 27748), (991, 20692), (1478, 13874), (1982, 10346), (2956, 6937), (3964, 5173)]