17820981

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{433}}^1$

素因数の和:725

約数の個数: 24

約数和(自身を含む): 27420120

約数和(自身を除く): 9599139

約数列:

[1, 3, 9, 17, 51, 153, 269, 433, 807, 1299, 2421, 3897, 4573, 7361, 13719, 22083, 41157, 66249, 116477, 349431, 1048293, 1980109, 5940327, 17820981]

約数ペア:

[(1, 17820981), (3, 5940327), (9, 1980109), (17, 1048293), (51, 349431), (153, 116477), (269, 66249), (433, 41157), (807, 22083), (1299, 13719), (2421, 7361), (3897, 4573)]