646871199

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{20759}}^1$

素因数の和:20839

約数の個数: 32

約数和(自身を含む): 1004451840

約数和(自身を除く): 357580641

約数列:

[1, 3, 13, 17, 39, 47, 51, 141, 221, 611, 663, 799, 1833, 2397, 10387, 20759, 31161, 62277, 269867, 352903, 809601, 975673, 1058709, 2927019, 4587739, 12683749, 13763217, 16586441, 38051247, 49759323, 215623733, 646871199]

約数ペア:

[(1, 646871199), (3, 215623733), (13, 49759323), (17, 38051247), (39, 16586441), (47, 13763217), (51, 12683749), (141, 4587739), (221, 2927019), (611, 1058709), (663, 975673), (799, 809601), (1833, 352903), (2397, 269867), (10387, 62277), (20759, 31161)]