2778561

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{433}}^1$

素因数の和:493

約数の個数: 24

約数和(自身を含む): 4333056

約数和(自身を除く): 1554495

約数列:

[1, 3, 9, 23, 31, 69, 93, 207, 279, 433, 713, 1299, 2139, 3897, 6417, 9959, 13423, 29877, 40269, 89631, 120807, 308729, 926187, 2778561]

約数ペア:

[(1, 2778561), (3, 926187), (9, 308729), (23, 120807), (31, 89631), (69, 40269), (93, 29877), (207, 13423), (279, 9959), (433, 6417), (713, 3897), (1299, 2139)]