28857543

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{491}}^1$

素因数の和:655

約数の個数: 32

約数和(自身を含む): 45626112

約数和(自身を除く): 16768569

約数列:

[1, 3, 11, 13, 33, 39, 137, 143, 411, 429, 491, 1473, 1507, 1781, 4521, 5343, 5401, 6383, 16203, 19149, 19591, 58773, 67267, 70213, 201801, 210639, 739937, 874471, 2219811, 2623413, 9619181, 28857543]

約数ペア:

[(1, 28857543), (3, 9619181), (11, 2623413), (13, 2219811), (33, 874471), (39, 739937), (137, 210639), (143, 201801), (411, 70213), (429, 67267), (491, 58773), (1473, 19591), (1507, 19149), (1781, 16203), (4521, 6383), (5343, 5401)]