207971169

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{521231}}^1$

素因数の和:521260

約数の個数: 16

約数和(自身を含む): 333588480

約数和(自身を除く): 125617311

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 521231, 1563693, 3648617, 9903389, 10945851, 29710167, 69323723, 207971169]

約数ペア:

[(1, 207971169), (3, 69323723), (7, 29710167), (19, 10945851), (21, 9903389), (57, 3648617), (133, 1563693), (399, 521231)]