21417561

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1949}}^1$

素因数の和:2006

約数の個数: 32

約数和(自身を含む): 35568000

約数和(自身を除く): 14150439

約数列:

[1, 3, 9, 11, 27, 33, 37, 99, 111, 297, 333, 407, 999, 1221, 1949, 3663, 5847, 10989, 17541, 21439, 52623, 64317, 72113, 192951, 216339, 578853, 649017, 793243, 1947051, 2379729, 7139187, 21417561]

約数ペア:

[(1, 21417561), (3, 7139187), (9, 2379729), (11, 1947051), (27, 793243), (33, 649017), (37, 578853), (99, 216339), (111, 192951), (297, 72113), (333, 64317), (407, 52623), (999, 21439), (1221, 17541), (1949, 10989), (3663, 5847)]