27995121

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:259

約数の個数: 72

約数和(自身を含む): 53352000

約数和(自身を除く): 25356879

約数列:

[1, 3, 7, 9, 11, 21, 29, 33, 49, 63, 77, 87, 99, 147, 199, 203, 231, 261, 319, 441, 539, 597, 609, 693, 957, 1393, 1421, 1617, 1791, 1827, 2189, 2233, 2871, 4179, 4263, 4851, 5771, 6567, 6699, 9751, 12537, 12789, 15323, 15631, 17313, 19701, 20097, 29253, 40397, 45969, 46893, 51939, 63481, 87759, 107261, 121191, 137907, 140679, 190443, 282779, 321783, 363573, 444367, 571329, 848337, 965349, 1333101, 2545011, 3110569, 3999303, 9331707, 27995121]

約数ペア:

[(1, 27995121), (3, 9331707), (7, 3999303), (9, 3110569), (11, 2545011), (21, 1333101), (29, 965349), (33, 848337), (49, 571329), (63, 444367), (77, 363573), (87, 321783), (99, 282779), (147, 190443), (199, 140679), (203, 137907), (231, 121191), (261, 107261), (319, 87759), (441, 63481), (539, 51939), (597, 46893), (609, 45969), (693, 40397), (957, 29253), (1393, 20097), (1421, 19701), (1617, 17313), (1791, 15631), (1827, 15323), (2189, 12789), (2233, 12537), (2871, 9751), (4179, 6699), (4263, 6567), (4851, 5771)]