19828953

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:202

約数の個数: 48

約数和(自身を含む): 32432400

約数和(自身を除く): 12603447

約数列:

[1, 3, 9, 17, 29, 41, 51, 87, 109, 123, 153, 261, 327, 369, 493, 697, 981, 1189, 1479, 1853, 2091, 3161, 3567, 4437, 4469, 5559, 6273, 9483, 10701, 13407, 16677, 20213, 28449, 40221, 53737, 60639, 75973, 129601, 161211, 181917, 227919, 388803, 483633, 683757, 1166409, 2203217, 6609651, 19828953]

約数ペア:

[(1, 19828953), (3, 6609651), (9, 2203217), (17, 1166409), (29, 683757), (41, 483633), (51, 388803), (87, 227919), (109, 181917), (123, 161211), (153, 129601), (261, 75973), (327, 60639), (369, 53737), (493, 40221), (697, 28449), (981, 20213), (1189, 16677), (1479, 13407), (1853, 10701), (2091, 9483), (3161, 6273), (3567, 5559), (4437, 4469)]