28953729

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{6473}}^1$

素因数の和:6557

約数の個数: 24

約数和(自身を含む): 48477312

約数和(自身を除く): 19523583

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 6473, 19419, 45311, 58257, 135933, 407799, 459583, 1378749, 3217081, 4136247, 9651243, 28953729]

約数ペア:

[(1, 28953729), (3, 9651243), (7, 4136247), (9, 3217081), (21, 1378749), (63, 459583), (71, 407799), (213, 135933), (497, 58257), (639, 45311), (1491, 19419), (4473, 6473)]