21480363

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{16927}}^1$

素因数の和:16983

約数の個数: 16

約数和(自身を含む): 32501760

約数和(自身を除く): 11021397

約数列:

[1, 3, 9, 27, 47, 141, 423, 1269, 16927, 50781, 152343, 457029, 795569, 2386707, 7160121, 21480363]

約数ペア:

[(1, 21480363), (3, 7160121), (9, 2386707), (27, 795569), (47, 457029), (141, 152343), (423, 50781), (1269, 16927)]