21919023

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{2161}}^1$

素因数の和:2204

約数の個数: 36

約数和(自身を含む): 38449008

約数和(自身を除く): 16529985

約数列:

[1, 3, 7, 9, 21, 23, 49, 63, 69, 147, 161, 207, 441, 483, 1127, 1449, 2161, 3381, 6483, 10143, 15127, 19449, 45381, 49703, 105889, 136143, 149109, 317667, 347921, 447327, 953001, 1043763, 2435447, 3131289, 7306341, 21919023]

約数ペア:

[(1, 21919023), (3, 7306341), (7, 3131289), (9, 2435447), (21, 1043763), (23, 953001), (49, 447327), (63, 347921), (69, 317667), (147, 149109), (161, 136143), (207, 105889), (441, 49703), (483, 45381), (1127, 19449), (1449, 15127), (2161, 10143), (3381, 6483)]