28681279

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1259}}^1$

素因数の和:1398

約数の個数: 16

約数和(自身を含む): 33264000

約数和(自身を除く): 4582721

約数列:

[1, 11, 19, 109, 209, 1199, 1259, 2071, 13849, 22781, 23921, 137231, 263131, 1509541, 2607389, 28681279]

約数ペア:

[(1, 28681279), (11, 2607389), (19, 1509541), (109, 263131), (209, 137231), (1199, 23921), (1259, 22781), (2071, 13849)]