21299152

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10009}}^1$

素因数の和:10043

約数の個数: 40

約数和(自身を含む): 49649600

約数和(自身を除く): 28350448

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 10009, 20018, 40036, 70063, 80072, 140126, 160144, 190171, 280252, 380342, 560504, 760684, 1121008, 1331197, 1521368, 2662394, 3042736, 5324788, 10649576, 21299152]

約数ペア:

[(1, 21299152), (2, 10649576), (4, 5324788), (7, 3042736), (8, 2662394), (14, 1521368), (16, 1331197), (19, 1121008), (28, 760684), (38, 560504), (56, 380342), (76, 280252), (112, 190171), (133, 160144), (152, 140126), (266, 80072), (304, 70063), (532, 40036), (1064, 20018), (2128, 10009)]