21370167

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{269}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 38525760

約数和(自身を除く): 17155593

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 97, 117, 269, 273, 291, 679, 807, 819, 873, 1261, 1883, 2037, 2421, 3497, 3783, 5649, 6111, 8827, 10491, 11349, 16947, 24479, 26093, 26481, 31473, 73437, 78279, 79443, 182651, 220311, 234837, 339209, 547953, 1017627, 1643859, 2374463, 3052881, 7123389, 21370167]

約数ペア:

[(1, 21370167), (3, 7123389), (7, 3052881), (9, 2374463), (13, 1643859), (21, 1017627), (39, 547953), (63, 339209), (91, 234837), (97, 220311), (117, 182651), (269, 79443), (273, 78279), (291, 73437), (679, 31473), (807, 26481), (819, 26093), (873, 24479), (1261, 16947), (1883, 11349), (2037, 10491), (2421, 8827), (3497, 6111), (3783, 5649)]