19378876

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{40039}}^1$

素因数の和:40065

約数の個数: 18

約数和(自身を含む): 37277240

約数和(自身を除く): 17898364

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 40039, 80078, 160156, 440429, 880858, 1761716, 4844719, 9689438, 19378876]

約数ペア:

[(1, 19378876), (2, 9689438), (4, 4844719), (11, 1761716), (22, 880858), (44, 440429), (121, 160156), (242, 80078), (484, 40039)]