21205772

素因数分解:

$2^2\times 7^1\times {\mathrm{179}}^1\times {\mathrm{4231}}^1$

素因数の和:4421

約数の個数: 24

約数和(自身を含む): 42658560

約数和(自身を除く): 21452788

約数列:

[1, 2, 4, 7, 14, 28, 179, 358, 716, 1253, 2506, 4231, 5012, 8462, 16924, 29617, 59234, 118468, 757349, 1514698, 3029396, 5301443, 10602886, 21205772]

約数ペア:

[(1, 21205772), (2, 10602886), (4, 5301443), (7, 3029396), (14, 1514698), (28, 757349), (179, 118468), (358, 59234), (716, 29617), (1253, 16924), (2506, 8462), (4231, 5012)]