21481497

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{21503}}^1$

素因数の和:21549

約数の個数: 16

約数和(自身を含む): 32686080

約数和(自身を除く): 11204583

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 21503, 64509, 193527, 580581, 795611, 2386833, 7160499, 21481497]

約数ペア:

[(1, 21481497), (3, 7160499), (9, 2386833), (27, 795611), (37, 580581), (111, 193527), (333, 64509), (999, 21503)]