2781207

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2161}}^1$

素因数の和:2191

約数の個数: 24

約数和(自身を含む): 4721808

約数和(自身を除く): 1940601

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 429, 1287, 2161, 6483, 19449, 23771, 28093, 71313, 84279, 213939, 252837, 309023, 927069, 2781207]

約数ペア:

[(1, 2781207), (3, 927069), (9, 309023), (11, 252837), (13, 213939), (33, 84279), (39, 71313), (99, 28093), (117, 23771), (143, 19449), (429, 6483), (1287, 2161)]