21242367

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{8167}}^1$

素因数の和:8207

約数の個数: 18

約数和(自身を含む): 32598488

約数和(自身を除く): 11356121

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 8167, 24501, 73503, 138839, 416517, 1249551, 2360263, 7080789, 21242367]

約数ペア:

[(1, 21242367), (3, 7080789), (9, 2360263), (17, 1249551), (51, 416517), (153, 138839), (289, 73503), (867, 24501), (2601, 8167)]