28681863

素因数分解:

$3^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{6473}}^1$

素因数の和:6694

約数の個数: 16

約数和(自身を含む): 43919616

約数和(自身を除く): 15237753

約数列:

[1, 3, 7, 21, 211, 633, 1477, 4431, 6473, 19419, 45311, 135933, 1365803, 4097409, 9560621, 28681863]

約数ペア:

[(1, 28681863), (3, 9560621), (7, 4097409), (21, 1365803), (211, 135933), (633, 45311), (1477, 19419), (4431, 6473)]