20008946997

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{81553}}^1$

素因数の和:81811

約数の個数: 40

約数和(自身を含む): 32327679384

約数和(自身を除く): 12318732387

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 233, 351, 699, 1053, 2097, 3029, 6291, 9087, 18873, 27261, 81553, 81783, 244659, 245349, 733977, 1060189, 2201931, 3180567, 6605793, 9541701, 19001849, 28625103, 57005547, 85875309, 171016641, 247024037, 513049923, 741072111, 1539149769, 2223216333, 6669648999, 20008946997]

約数ペア:

[(1, 20008946997), (3, 6669648999), (9, 2223216333), (13, 1539149769), (27, 741072111), (39, 513049923), (81, 247024037), (117, 171016641), (233, 85875309), (351, 57005547), (699, 28625103), (1053, 19001849), (2097, 9541701), (3029, 6605793), (6291, 3180567), (9087, 2201931), (18873, 1060189), (27261, 733977), (81553, 245349), (81783, 244659)]