2561617143

素因数分解:

$3^4\times {\mathrm{1439}}^1\times {\mathrm{21977}}^1$

素因数の和:23428

約数の個数: 20

約数和(自身を含む): 3829446720

約数和(自身を除く): 1267829577

約数列:

[1, 3, 9, 27, 81, 1439, 4317, 12951, 21977, 38853, 65931, 116559, 197793, 593379, 1780137, 31624903, 94874709, 284624127, 853872381, 2561617143]

約数ペア:

[(1, 2561617143), (3, 853872381), (9, 284624127), (27, 94874709), (81, 31624903), (1439, 1780137), (4317, 593379), (12951, 197793), (21977, 116559), (38853, 65931)]