2838381

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{281}}^1$

素因数の和:341

約数の個数: 32

約数和(自身を含む): 4800768

約数和(自身を除く): 1962387

約数列:

[1, 3, 7, 13, 21, 37, 39, 91, 111, 259, 273, 281, 481, 777, 843, 1443, 1967, 3367, 3653, 5901, 10101, 10397, 10959, 25571, 31191, 72779, 76713, 135161, 218337, 405483, 946127, 2838381]

約数ペア:

[(1, 2838381), (3, 946127), (7, 405483), (13, 218337), (21, 135161), (37, 76713), (39, 72779), (91, 31191), (111, 25571), (259, 10959), (273, 10397), (281, 10101), (481, 5901), (777, 3653), (843, 3367), (1443, 1967)]