208553919

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{136043}}^1$

素因数の和:136126

約数の個数: 16

約数和(自身を含む): 322152192

約数和(自身を除く): 113598273

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 136043, 408129, 952301, 2856903, 9931139, 29793417, 69517973, 208553919]

約数ペア:

[(1, 208553919), (3, 69517973), (7, 29793417), (21, 9931139), (73, 2856903), (219, 952301), (511, 408129), (1533, 136043)]