28556379

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{10979}}^1$

素因数の和:11019

約数の個数: 18

約数和(自身を含む): 43821180

約数和(自身を除く): 15264801

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 10979, 32937, 98811, 186643, 559929, 1679787, 3172931, 9518793, 28556379]

約数ペア:

[(1, 28556379), (3, 9518793), (9, 3172931), (17, 1679787), (51, 559929), (153, 186643), (289, 98811), (867, 32937), (2601, 10979)]