31321563

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3701}}^1$

素因数の和:3755

約数の個数: 32

約数和(自身を含む): 53071872

約数和(自身を除く): 21750309

約数列:

[1, 3, 7, 13, 21, 31, 39, 91, 93, 217, 273, 403, 651, 1209, 2821, 3701, 8463, 11103, 25907, 48113, 77721, 114731, 144339, 336791, 344193, 803117, 1010373, 1491503, 2409351, 4474509, 10440521, 31321563]

約数ペア:

[(1, 31321563), (3, 10440521), (7, 4474509), (13, 2409351), (21, 1491503), (31, 1010373), (39, 803117), (91, 344193), (93, 336791), (217, 144339), (273, 114731), (403, 77721), (651, 48113), (1209, 25907), (2821, 11103), (3701, 8463)]