19713051

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{12809}}^1$

素因数の和:12840

約数の個数: 20

約数和(自身を含む): 31000200

約数和(自身を除く): 11287149

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 12809, 38427, 115281, 243371, 345843, 730113, 1037529, 2190339, 6571017, 19713051]

約数ペア:

[(1, 19713051), (3, 6571017), (9, 2190339), (19, 1037529), (27, 730113), (57, 345843), (81, 243371), (171, 115281), (513, 38427), (1539, 12809)]