21494080

素因数分解:

$2^6\times 5^1\times {\mathrm{67169}}^1$

素因数の和:67186

約数の個数: 28

約数和(自身を含む): 51183540

約数和(自身を除く): 29689460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 67169, 134338, 268676, 335845, 537352, 671690, 1074704, 1343380, 2149408, 2686760, 4298816, 5373520, 10747040, 21494080]

約数ペア:

[(1, 21494080), (2, 10747040), (4, 5373520), (5, 4298816), (8, 2686760), (10, 2149408), (16, 1343380), (20, 1074704), (32, 671690), (40, 537352), (64, 335845), (80, 268676), (160, 134338), (320, 67169)]