20809992

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1277}}^1$

素因数の和:1390

約数の個数: 64

約数和(自身を含む): 60117120

約数和(自身を除く): 39307128

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 97, 168, 194, 291, 388, 582, 679, 776, 1164, 1277, 1358, 2037, 2328, 2554, 2716, 3831, 4074, 5108, 5432, 7662, 8148, 8939, 10216, 15324, 16296, 17878, 26817, 30648, 35756, 53634, 71512, 107268, 123869, 214536, 247738, 371607, 495476, 743214, 867083, 990952, 1486428, 1734166, 2601249, 2972856, 3468332, 5202498, 6936664, 10404996, 20809992]

約数ペア:

[(1, 20809992), (2, 10404996), (3, 6936664), (4, 5202498), (6, 3468332), (7, 2972856), (8, 2601249), (12, 1734166), (14, 1486428), (21, 990952), (24, 867083), (28, 743214), (42, 495476), (56, 371607), (84, 247738), (97, 214536), (168, 123869), (194, 107268), (291, 71512), (388, 53634), (582, 35756), (679, 30648), (776, 26817), (1164, 17878), (1277, 16296), (1358, 15324), (2037, 10216), (2328, 8939), (2554, 8148), (2716, 7662), (3831, 5432), (4074, 5108)]