21340480

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{1361}}^1$

素因数の和:1392

約数の個数: 84

約数和(自身を含む): 59157108

約数和(自身を除く): 37816628

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 320, 392, 448, 490, 560, 784, 980, 1120, 1361, 1568, 1960, 2240, 2722, 3136, 3920, 5444, 6805, 7840, 9527, 10888, 13610, 15680, 19054, 21776, 27220, 38108, 43552, 47635, 54440, 66689, 76216, 87104, 95270, 108880, 133378, 152432, 190540, 217760, 266756, 304864, 333445, 381080, 435520, 533512, 609728, 666890, 762160, 1067024, 1333780, 1524320, 2134048, 2667560, 3048640, 4268096, 5335120, 10670240, 21340480]

約数ペア:

[(1, 21340480), (2, 10670240), (4, 5335120), (5, 4268096), (7, 3048640), (8, 2667560), (10, 2134048), (14, 1524320), (16, 1333780), (20, 1067024), (28, 762160), (32, 666890), (35, 609728), (40, 533512), (49, 435520), (56, 381080), (64, 333445), (70, 304864), (80, 266756), (98, 217760), (112, 190540), (140, 152432), (160, 133378), (196, 108880), (224, 95270), (245, 87104), (280, 76216), (320, 66689), (392, 54440), (448, 47635), (490, 43552), (560, 38108), (784, 27220), (980, 21776), (1120, 19054), (1361, 15680), (1568, 13610), (1960, 10888), (2240, 9527), (2722, 7840), (3136, 6805), (3920, 5444)]