20208903

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{163}}^1$

素因数の和:224

約数の個数: 48

約数和(自身を含む): 33833856

約数和(自身を除く): 13624953

約数列:

[1, 3, 11, 13, 17, 33, 39, 51, 143, 163, 187, 221, 289, 429, 489, 561, 663, 867, 1793, 2119, 2431, 2771, 3179, 3757, 5379, 6357, 7293, 8313, 9537, 11271, 23309, 30481, 36023, 41327, 47107, 69927, 91443, 108069, 123981, 141321, 396253, 518177, 612391, 1188759, 1554531, 1837173, 6736301, 20208903]

約数ペア:

[(1, 20208903), (3, 6736301), (11, 1837173), (13, 1554531), (17, 1188759), (33, 612391), (39, 518177), (51, 396253), (143, 141321), (163, 123981), (187, 108069), (221, 91443), (289, 69927), (429, 47107), (489, 41327), (561, 36023), (663, 30481), (867, 23309), (1793, 11271), (2119, 9537), (2431, 8313), (2771, 7293), (3179, 6357), (3757, 5379)]