645914521

素因数分解:

$7^2\times {\mathrm{829}}^1\times {\mathrm{15901}}^1$

素因数の和:16744

約数の個数: 12

約数和(自身を含む): 752323620

約数和(自身を除く): 106409099

約数列:

[1, 7, 49, 829, 5803, 15901, 40621, 111307, 779149, 13181929, 92273503, 645914521]

約数ペア:

[(1, 645914521), (7, 92273503), (49, 13181929), (829, 779149), (5803, 111307), (15901, 40621)]