21916455

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{3089}}^1$

素因数の和:3151

約数の個数: 32

約数和(自身を含む): 39156480

約数和(自身を除く): 17240025

約数列:

[1, 3, 5, 11, 15, 33, 43, 55, 129, 165, 215, 473, 645, 1419, 2365, 3089, 7095, 9267, 15445, 33979, 46335, 101937, 132827, 169895, 398481, 509685, 664135, 1461097, 1992405, 4383291, 7305485, 21916455]

約数ペア:

[(1, 21916455), (3, 7305485), (5, 4383291), (11, 1992405), (15, 1461097), (33, 664135), (43, 509685), (55, 398481), (129, 169895), (165, 132827), (215, 101937), (473, 46335), (645, 33979), (1419, 15445), (2365, 9267), (3089, 7095)]