28961919

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{10691}}^1$

素因数の和:10747

約数の個数: 24

約数和(自身を含む): 48926592

約数和(自身を除く): 19964673

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 10691, 32073, 74837, 96219, 224511, 459713, 673533, 1379139, 3217991, 4137417, 9653973, 28961919]

約数ペア:

[(1, 28961919), (3, 9653973), (7, 4137417), (9, 3217991), (21, 1379139), (43, 673533), (63, 459713), (129, 224511), (301, 96219), (387, 74837), (903, 32073), (2709, 10691)]