21684159

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3701}}^1$

素因数の和:3748

約数の個数: 32

約数和(自身を含む): 37908480

約数和(自身を除く): 16224321

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 93, 189, 217, 279, 651, 837, 1953, 3701, 5859, 11103, 25907, 33309, 77721, 99927, 114731, 233163, 344193, 699489, 803117, 1032579, 2409351, 3097737, 7228053, 21684159]

約数ペア:

[(1, 21684159), (3, 7228053), (7, 3097737), (9, 2409351), (21, 1032579), (27, 803117), (31, 699489), (63, 344193), (93, 233163), (189, 114731), (217, 99927), (279, 77721), (651, 33309), (837, 25907), (1953, 11103), (3701, 5859)]