21000339388

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{10563551}}^1$

素因数の和:10563633

約数の個数: 24

約数和(自身を含む): 42592241664

約数和(自身を除く): 21591902276

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 10563551, 21127102, 42254204, 73944857, 147889714, 295779428, 750012121, 1500024242, 3000048484, 5250084847, 10500169694, 21000339388]

約数ペア:

[(1, 21000339388), (2, 10500169694), (4, 5250084847), (7, 3000048484), (14, 1500024242), (28, 750012121), (71, 295779428), (142, 147889714), (284, 73944857), (497, 42254204), (994, 21127102), (1988, 10563551)]