19489281

素因数分解:

$3^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{3023}}^1$

素因数の和:3340

約数の個数: 16

約数和(自身を含む): 29804544

約数和(自身を除く): 10315263

約数列:

[1, 3, 7, 21, 307, 921, 2149, 3023, 6447, 9069, 21161, 63483, 928061, 2784183, 6496427, 19489281]

約数ペア:

[(1, 19489281), (3, 6496427), (7, 2784183), (21, 928061), (307, 63483), (921, 21161), (2149, 9069), (3023, 6447)]