21595912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{207653}}^1$

素因数の和:207672

約数の個数: 16

約数和(自身を含む): 43607340

約数和(自身を除く): 22011428

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 207653, 415306, 830612, 1661224, 2699489, 5398978, 10797956, 21595912]

約数ペア:

[(1, 21595912), (2, 10797956), (4, 5398978), (8, 2699489), (13, 1661224), (26, 830612), (52, 415306), (104, 207653)]