19840587

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{11831}}^1$

素因数の和:11890

約数の個数: 16

約数和(自身を含む): 29154048

約数和(自身を除く): 9313461

約数列:

[1, 3, 13, 39, 43, 129, 559, 1677, 11831, 35493, 153803, 461409, 508733, 1526199, 6613529, 19840587]

約数ペア:

[(1, 19840587), (3, 6613529), (13, 1526199), (39, 508733), (43, 461409), (129, 153803), (559, 35493), (1677, 11831)]