20909295

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{797}}^1$

素因数の和:872

約数の個数: 48

約数和(自身を含む): 40334112

約数和(自身を除く): 19424817

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 53, 55, 99, 159, 165, 265, 477, 495, 583, 795, 797, 1749, 2385, 2391, 2915, 3985, 5247, 7173, 8745, 8767, 11955, 26235, 26301, 35865, 42241, 43835, 78903, 126723, 131505, 211205, 380169, 394515, 464651, 633615, 1393953, 1900845, 2323255, 4181859, 6969765, 20909295]

約数ペア:

[(1, 20909295), (3, 6969765), (5, 4181859), (9, 2323255), (11, 1900845), (15, 1393953), (33, 633615), (45, 464651), (53, 394515), (55, 380169), (99, 211205), (159, 131505), (165, 126723), (265, 78903), (477, 43835), (495, 42241), (583, 35865), (795, 26301), (797, 26235), (1749, 11955), (2385, 8767), (2391, 8745), (2915, 7173), (3985, 5247)]