21185439

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{2441}}^1$

素因数の和:2718

約数の個数: 16

約数和(自身を含む): 30945024

約数和(自身を除く): 9759585

約数列:

[1, 3, 11, 33, 263, 789, 2441, 2893, 7323, 8679, 26851, 80553, 641983, 1925949, 7061813, 21185439]

約数ペア:

[(1, 21185439), (3, 7061813), (11, 1925949), (33, 641983), (263, 80553), (789, 26851), (2441, 8679), (2893, 7323)]