21216075903

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{390353}}^1$

素因数の和:390437

約数の個数: 40

約数和(自身を含む): 35141228496

約数和(自身を除く): 13925152593

約数列:

[1, 3, 9, 11, 27, 33, 61, 81, 99, 183, 297, 549, 671, 891, 1647, 2013, 4941, 6039, 18117, 54351, 390353, 1171059, 3513177, 4293883, 10539531, 12881649, 23811533, 31618593, 38644947, 71434599, 115934841, 214303797, 261926863, 347804523, 642911391, 785780589, 1928734173, 2357341767, 7072025301, 21216075903]

約数ペア:

[(1, 21216075903), (3, 7072025301), (9, 2357341767), (11, 1928734173), (27, 785780589), (33, 642911391), (61, 347804523), (81, 261926863), (99, 214303797), (183, 115934841), (297, 71434599), (549, 38644947), (671, 31618593), (891, 23811533), (1647, 12881649), (2013, 10539531), (4941, 4293883), (6039, 3513177), (18117, 1171059), (54351, 390353)]