20784433995

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{217969}}^1$

素因数の和:218156

約数の個数: 48

約数和(自身を含む): 39035811360

約数和(自身を除く): 18251377365

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 163, 195, 489, 585, 815, 1467, 2119, 2445, 6357, 7335, 10595, 19071, 31785, 95355, 217969, 653907, 1089845, 1961721, 2833597, 3269535, 8500791, 9808605, 14167985, 25502373, 35528947, 42503955, 106586841, 127511865, 177644735, 319760523, 461876311, 532934205, 1385628933, 1598802615, 2309381555, 4156886799, 6928144665, 20784433995]

約数ペア:

[(1, 20784433995), (3, 6928144665), (5, 4156886799), (9, 2309381555), (13, 1598802615), (15, 1385628933), (39, 532934205), (45, 461876311), (65, 319760523), (117, 177644735), (163, 127511865), (195, 106586841), (489, 42503955), (585, 35528947), (815, 25502373), (1467, 14167985), (2119, 9808605), (2445, 8500791), (6357, 3269535), (7335, 2833597), (10595, 1961721), (19071, 1089845), (31785, 653907), (95355, 217969)]