213952225

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{10711}}^1$

素因数の和:10785

約数の個数: 24

約数和(自身を含む): 286910208

約数和(自身を除く): 72957983

約数列:

[1, 5, 17, 25, 47, 85, 235, 425, 799, 1175, 3995, 10711, 19975, 53555, 182087, 267775, 503417, 910435, 2517085, 4552175, 8558089, 12585425, 42790445, 213952225]

約数ペア:

[(1, 213952225), (5, 42790445), (17, 12585425), (25, 8558089), (47, 4552175), (85, 2517085), (235, 910435), (425, 503417), (799, 267775), (1175, 182087), (3995, 53555), (10711, 19975)]