28789719

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{19309}}^1$

素因数の和:19390

約数の個数: 16

約数和(自身を含む): 44490240

約数和(自身を除く): 15700521

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 19309, 57927, 135163, 405489, 1370939, 4112817, 9596573, 28789719]

約数ペア:

[(1, 28789719), (3, 9596573), (7, 4112817), (21, 1370939), (71, 405489), (213, 135163), (497, 57927), (1491, 19309)]