20458426

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{347}}^1\times {\mathrm{719}}^1$

素因数の和:1109

約数の個数: 16

約数和(自身を含む): 31570560

約数和(自身を除く): 11112134

約数列:

[1, 2, 41, 82, 347, 694, 719, 1438, 14227, 28454, 29479, 58958, 249493, 498986, 10229213, 20458426]

約数ペア:

[(1, 20458426), (2, 10229213), (41, 498986), (82, 249493), (347, 58958), (694, 29479), (719, 28454), (1438, 14227)]