28262481

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{887}}^1$

素因数の和:965

約数の個数: 32

約数和(自身を含む): 43760640

約数和(自身を除く): 15498159

約数列:

[1, 3, 13, 19, 39, 43, 57, 129, 247, 559, 741, 817, 887, 1677, 2451, 2661, 10621, 11531, 16853, 31863, 34593, 38141, 50559, 114423, 219089, 495833, 657267, 724679, 1487499, 2174037, 9420827, 28262481]

約数ペア:

[(1, 28262481), (3, 9420827), (13, 2174037), (19, 1487499), (39, 724679), (43, 657267), (57, 495833), (129, 219089), (247, 114423), (559, 50559), (741, 38141), (817, 34593), (887, 31863), (1677, 16853), (2451, 11531), (2661, 10621)]