258741

素因数分解:

$3^3\times 7^1\times {\mathrm{37}}^2$

素因数の和:90

約数の個数: 24

約数和(自身を含む): 450240

約数和(自身を除く): 191499

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 111, 189, 259, 333, 777, 999, 1369, 2331, 4107, 6993, 9583, 12321, 28749, 36963, 86247, 258741]

約数ペア:

[(1, 258741), (3, 86247), (7, 36963), (9, 28749), (21, 12321), (27, 9583), (37, 6993), (63, 4107), (111, 2331), (189, 1369), (259, 999), (333, 777)]