20129974527

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{248509}}^1$

素因数の和:248623

約数の個数: 32

約数和(自身を含む): 30282434560

約数和(自身を除く): 10152460033

約数列:

[1, 3, 13, 31, 39, 67, 93, 201, 403, 871, 1209, 2077, 2613, 6231, 27001, 81003, 248509, 745527, 3230617, 7703779, 9691851, 16650103, 23111337, 49950309, 100149127, 216451339, 300447381, 516153193, 649354017, 1548459579, 6709991509, 20129974527]

約数ペア:

[(1, 20129974527), (3, 6709991509), (13, 1548459579), (31, 649354017), (39, 516153193), (67, 300447381), (93, 216451339), (201, 100149127), (403, 49950309), (871, 23111337), (1209, 16650103), (2077, 9691851), (2613, 7703779), (6231, 3230617), (27001, 745527), (81003, 248509)]