19867788

素因数分解:

$2^2\times 3^3\times {\mathrm{71}}^1\times {\mathrm{2591}}^1$

素因数の和:2675

約数の個数: 48

約数和(自身を含む): 52254720

約数和(自身を除く): 32386932

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 71, 108, 142, 213, 284, 426, 639, 852, 1278, 1917, 2556, 2591, 3834, 5182, 7668, 7773, 10364, 15546, 23319, 31092, 46638, 69957, 93276, 139914, 183961, 279828, 367922, 551883, 735844, 1103766, 1655649, 2207532, 3311298, 4966947, 6622596, 9933894, 19867788]

約数ペア:

[(1, 19867788), (2, 9933894), (3, 6622596), (4, 4966947), (6, 3311298), (9, 2207532), (12, 1655649), (18, 1103766), (27, 735844), (36, 551883), (54, 367922), (71, 279828), (108, 183961), (142, 139914), (213, 93276), (284, 69957), (426, 46638), (639, 31092), (852, 23319), (1278, 15546), (1917, 10364), (2556, 7773), (2591, 7668), (3834, 5182)]