19810321

素因数分解:

${\mathrm{17}}^1\times {\mathrm{613}}^1\times {\mathrm{1901}}^1$

素因数の和:2531

約数の個数: 8

約数和(自身を含む): 21020904

約数和(自身を除く): 1210583

約数列:

[1, 17, 613, 1901, 10421, 32317, 1165313, 19810321]

約数ペア:

[(1, 19810321), (17, 1165313), (613, 32317), (1901, 10421)]