20191777218

素因数分解:

$2^1\times 3^2\times {\mathrm{1121765401}}^1$

素因数の和:1121765409

約数の個数: 12

約数和(自身を含む): 43748850678

約数和(自身を除く): 23557073460

約数列:

[1, 2, 3, 6, 9, 18, 1121765401, 2243530802, 3365296203, 6730592406, 10095888609, 20191777218]

約数ペア:

[(1, 20191777218), (2, 10095888609), (3, 6730592406), (6, 3365296203), (9, 2243530802), (18, 1121765401)]