21480387

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{6673}}^1$

素因数の和:6742

約数の個数: 16

約数和(自身を含む): 30433440

約数和(自身を除く): 8953053

約数列:

[1, 3, 29, 37, 87, 111, 1073, 3219, 6673, 20019, 193517, 246901, 580551, 740703, 7160129, 21480387]

約数ペア:

[(1, 21480387), (3, 7160129), (29, 740703), (37, 580551), (87, 246901), (111, 193517), (1073, 20019), (3219, 6673)]