20319759

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{359}}^1$

素因数の和:715

約数の個数: 24

約数和(自身を含む): 31075200

約数和(自身を除く): 10755441

約数列:

[1, 3, 9, 19, 57, 171, 331, 359, 993, 1077, 2979, 3231, 6289, 6821, 18867, 20463, 56601, 61389, 118829, 356487, 1069461, 2257751, 6773253, 20319759]

約数ペア:

[(1, 20319759), (3, 6773253), (9, 2257751), (19, 1069461), (57, 356487), (171, 118829), (331, 61389), (359, 56601), (993, 20463), (1077, 18867), (2979, 6821), (3231, 6289)]