21984621

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{503}}^1\times {\mathrm{857}}^1$

素因数の和:1380

約数の個数: 16

約数和(自身を含む): 31135104

約数和(自身を除く): 9150483

約数列:

[1, 3, 17, 51, 503, 857, 1509, 2571, 8551, 14569, 25653, 43707, 431071, 1293213, 7328207, 21984621]

約数ペア:

[(1, 21984621), (3, 7328207), (17, 1293213), (51, 431071), (503, 43707), (857, 25653), (1509, 14569), (2571, 8551)]