20864337

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{761}}^1$

素因数の和:833

約数の個数: 32

約数和(自身を含む): 32430720

約数和(自身を除く): 11566383

約数列:

[1, 3, 13, 19, 37, 39, 57, 111, 247, 481, 703, 741, 761, 1443, 2109, 2283, 9139, 9893, 14459, 27417, 28157, 29679, 43377, 84471, 187967, 366041, 534983, 563901, 1098123, 1604949, 6954779, 20864337]

約数ペア:

[(1, 20864337), (3, 6954779), (13, 1604949), (19, 1098123), (37, 563901), (39, 534983), (57, 366041), (111, 187967), (247, 84471), (481, 43377), (703, 29679), (741, 28157), (761, 27417), (1443, 14459), (2109, 9893), (2283, 9139)]