21323709

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:199

約数の個数: 48

約数和(自身を含む): 35622720

約数和(自身を除く): 14299011

約数列:

[1, 3, 9, 11, 27, 33, 61, 99, 107, 121, 183, 297, 321, 363, 549, 671, 963, 1089, 1177, 1647, 2013, 2889, 3267, 3531, 6039, 6527, 7381, 10593, 12947, 18117, 19581, 22143, 31779, 38841, 58743, 66429, 71797, 116523, 176229, 199287, 215391, 349569, 646173, 789767, 1938519, 2369301, 7107903, 21323709]

約数ペア:

[(1, 21323709), (3, 7107903), (9, 2369301), (11, 1938519), (27, 789767), (33, 646173), (61, 349569), (99, 215391), (107, 199287), (121, 176229), (183, 116523), (297, 71797), (321, 66429), (363, 58743), (549, 38841), (671, 31779), (963, 22143), (1089, 19581), (1177, 18117), (1647, 12947), (2013, 10593), (2889, 7381), (3267, 6527), (3531, 6039)]