19720129

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{577}}^1$

素因数の和:840

約数の個数: 16

約数和(自身を含む): 23304960

約数和(自身を除く): 3584831

約数列:

[1, 11, 13, 143, 239, 577, 2629, 3107, 6347, 7501, 34177, 82511, 137903, 1516933, 1792739, 19720129]

約数ペア:

[(1, 19720129), (11, 1792739), (13, 1516933), (143, 137903), (239, 82511), (577, 34177), (2629, 7501), (3107, 6347)]