20898339

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{90469}}^1$

素因数の和:90490

約数の個数: 16

約数和(自身を含む): 34740480

約数和(自身を除く): 13842141

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 90469, 271407, 633283, 995159, 1899849, 2985477, 6966113, 20898339]

約数ペア:

[(1, 20898339), (3, 6966113), (7, 2985477), (11, 1899849), (21, 995159), (33, 633283), (77, 271407), (231, 90469)]