21000737080

素因数分解:

$2^3\times 5^1\times {\mathrm{14447}}^1\times {\mathrm{36341}}^1$

素因数の和:50799

約数の個数: 32

約数和(自身を含む): 47256229440

約数和(自身を除く): 26255492360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 14447, 28894, 36341, 57788, 72235, 72682, 115576, 144470, 145364, 181705, 288940, 290728, 363410, 577880, 726820, 1453640, 525018427, 1050036854, 2100073708, 2625092135, 4200147416, 5250184270, 10500368540, 21000737080]

約数ペア:

[(1, 21000737080), (2, 10500368540), (4, 5250184270), (5, 4200147416), (8, 2625092135), (10, 2100073708), (20, 1050036854), (40, 525018427), (14447, 1453640), (28894, 726820), (36341, 577880), (57788, 363410), (72235, 290728), (72682, 288940), (115576, 181705), (144470, 145364)]