19664427

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{613}}^1$

素因数の和:687

約数の個数: 24

約数和(自身を含む): 28651696

約数和(自身を除く): 8987269

約数列:

[1, 3, 17, 37, 51, 111, 289, 613, 629, 867, 1839, 1887, 10421, 10693, 22681, 31263, 32079, 68043, 177157, 385577, 531471, 1156731, 6554809, 19664427]

約数ペア:

[(1, 19664427), (3, 6554809), (17, 1156731), (37, 531471), (51, 385577), (111, 177157), (289, 68043), (613, 32079), (629, 31263), (867, 22681), (1839, 10693), (1887, 10421)]