21671613

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1931}}^1$

素因数の和:2009

約数の個数: 24

約数和(自身を含む): 33153120

約数和(自身を除く): 11481507

約数列:

[1, 3, 9, 29, 43, 87, 129, 261, 387, 1247, 1931, 3741, 5793, 11223, 17379, 55999, 83033, 167997, 249099, 503991, 747297, 2407957, 7223871, 21671613]

約数ペア:

[(1, 21671613), (3, 7223871), (9, 2407957), (29, 747297), (43, 503991), (87, 249099), (129, 167997), (261, 83033), (387, 55999), (1247, 17379), (1931, 11223), (3741, 5793)]