21702591

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{1709}}^1$

素因数の和:1815

約数の個数: 24

約数和(自身を含む): 33611760

約数和(自身を除く): 11909169

約数列:

[1, 3, 9, 17, 51, 83, 153, 249, 747, 1411, 1709, 4233, 5127, 12699, 15381, 29053, 87159, 141847, 261477, 425541, 1276623, 2411399, 7234197, 21702591]

約数ペア:

[(1, 21702591), (3, 7234197), (9, 2411399), (17, 1276623), (51, 425541), (83, 261477), (153, 141847), (249, 87159), (747, 29053), (1411, 15381), (1709, 12699), (4233, 5127)]