21253120

素因数分解:

$2^{10}\times 5^1\times 7^1\times {\mathrm{593}}^1$

素因数の和:625

約数の個数: 88

約数和(自身を含む): 58364064

約数和(自身を除く): 37110944

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 593, 640, 896, 1024, 1120, 1186, 1280, 1792, 2240, 2372, 2560, 2965, 3584, 4151, 4480, 4744, 5120, 5930, 7168, 8302, 8960, 9488, 11860, 16604, 17920, 18976, 20755, 23720, 33208, 35840, 37952, 41510, 47440, 66416, 75904, 83020, 94880, 132832, 151808, 166040, 189760, 265664, 303616, 332080, 379520, 531328, 607232, 664160, 759040, 1062656, 1328320, 1518080, 2125312, 2656640, 3036160, 4250624, 5313280, 10626560, 21253120]

約数ペア:

[(1, 21253120), (2, 10626560), (4, 5313280), (5, 4250624), (7, 3036160), (8, 2656640), (10, 2125312), (14, 1518080), (16, 1328320), (20, 1062656), (28, 759040), (32, 664160), (35, 607232), (40, 531328), (56, 379520), (64, 332080), (70, 303616), (80, 265664), (112, 189760), (128, 166040), (140, 151808), (160, 132832), (224, 94880), (256, 83020), (280, 75904), (320, 66416), (448, 47440), (512, 41510), (560, 37952), (593, 35840), (640, 33208), (896, 23720), (1024, 20755), (1120, 18976), (1186, 17920), (1280, 16604), (1792, 11860), (2240, 9488), (2372, 8960), (2560, 8302), (2965, 7168), (3584, 5930), (4151, 5120), (4480, 4744)]