19213238

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{4139}}^1$

素因数の和:4363

約数の個数: 16

約数和(自身を含む): 31596480

約数和(自身を除く): 12383242

約数列:

[1, 2, 11, 22, 211, 422, 2321, 4139, 4642, 8278, 45529, 91058, 873329, 1746658, 9606619, 19213238]

約数ペア:

[(1, 19213238), (2, 9606619), (11, 1746658), (22, 873329), (211, 91058), (422, 45529), (2321, 8278), (4139, 4642)]