28287129

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{19603}}^1$

素因数の和:19656

約数の個数: 16

約数和(自身を含む): 41717312

約数和(自身を除く): 13430183

約数列:

[1, 3, 13, 37, 39, 111, 481, 1443, 19603, 58809, 254839, 725311, 764517, 2175933, 9429043, 28287129]

約数ペア:

[(1, 28287129), (3, 9429043), (13, 2175933), (37, 764517), (39, 725311), (111, 254839), (481, 58809), (1443, 19603)]