20089521

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:437

約数の個数: 24

約数和(自身を含む): 29764800

約数和(自身を除く): 9675279

約数列:

[1, 3, 9, 71, 149, 211, 213, 447, 633, 639, 1341, 1899, 10579, 14981, 31439, 31737, 44943, 94317, 95211, 134829, 282951, 2232169, 6696507, 20089521]

約数ペア:

[(1, 20089521), (3, 6696507), (9, 2232169), (71, 282951), (149, 134829), (211, 95211), (213, 94317), (447, 44943), (633, 31737), (639, 31439), (1341, 14981), (1899, 10579)]