20789613

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{1297}}^1$

素因数の和:1453

約数の個数: 24

約数和(自身を含む): 32600568

約数和(自身を除く): 11810955

約数列:

[1, 3, 9, 13, 39, 117, 137, 411, 1233, 1297, 1781, 3891, 5343, 11673, 16029, 16861, 50583, 151749, 177689, 533067, 1599201, 2309957, 6929871, 20789613]

約数ペア:

[(1, 20789613), (3, 6929871), (9, 2309957), (13, 1599201), (39, 533067), (117, 177689), (137, 151749), (411, 50583), (1233, 16861), (1297, 16029), (1781, 11673), (3891, 5343)]