21786897

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{1277}}^1$

素因数の和:1349

約数の個数: 24

約数和(自身を含む): 32635008

約数和(自身を除く): 10848111

約数列:

[1, 3, 11, 33, 47, 121, 141, 363, 517, 1277, 1551, 3831, 5687, 14047, 17061, 42141, 60019, 154517, 180057, 463551, 660209, 1980627, 7262299, 21786897]

約数ペア:

[(1, 21786897), (3, 7262299), (11, 1980627), (33, 660209), (47, 463551), (121, 180057), (141, 154517), (363, 60019), (517, 42141), (1277, 17061), (1551, 14047), (3831, 5687)]