19780882

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{6563}}^1$

素因数の和:6713

約数の個数: 16

約数和(自身を含む): 32609952

約数和(自身を除く): 12829070

約数列:

[1, 2, 11, 22, 137, 274, 1507, 3014, 6563, 13126, 72193, 144386, 899131, 1798262, 9890441, 19780882]

約数ペア:

[(1, 19780882), (2, 9890441), (11, 1798262), (22, 899131), (137, 144386), (274, 72193), (1507, 13126), (3014, 6563)]