20838416

素因数分解:

$2^4\times {\mathrm{479}}^1\times {\mathrm{2719}}^1$

素因数の和:3206

約数の個数: 20

約数和(自身を含む): 40473600

約数和(自身を除く): 19635184

約数列:

[1, 2, 4, 8, 16, 479, 958, 1916, 2719, 3832, 5438, 7664, 10876, 21752, 43504, 1302401, 2604802, 5209604, 10419208, 20838416]

約数ペア:

[(1, 20838416), (2, 10419208), (4, 5209604), (8, 2604802), (16, 1302401), (479, 43504), (958, 21752), (1916, 10876), (2719, 7664), (3832, 5438)]