21735440

素因数分解:

$2^4\times 5^1\times {\mathrm{271693}}^1$

素因数の和:271706

約数の個数: 20

約数和(自身を含む): 50535084

約数和(自身を除く): 28799644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 271693, 543386, 1086772, 1358465, 2173544, 2716930, 4347088, 5433860, 10867720, 21735440]

約数ペア:

[(1, 21735440), (2, 10867720), (4, 5433860), (5, 4347088), (8, 2716930), (10, 2173544), (16, 1358465), (20, 1086772), (40, 543386), (80, 271693)]