21749547

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{5227}}^1$

素因数の和:5322

約数の個数: 16

約数和(自身を含む): 30949760

約数和(自身を除く): 9200213

約数列:

[1, 3, 19, 57, 73, 219, 1387, 4161, 5227, 15681, 99313, 297939, 381571, 1144713, 7249849, 21749547]

約数ペア:

[(1, 21749547), (3, 7249849), (19, 1144713), (57, 381571), (73, 297939), (219, 99313), (1387, 15681), (4161, 5227)]