28129803

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{439}}^1$

素因数の和:539

約数の個数: 32

約数和(自身を含む): 42577920

約数和(自身を除く): 14448117

約数列:

[1, 3, 13, 31, 39, 53, 93, 159, 403, 439, 689, 1209, 1317, 1643, 2067, 4929, 5707, 13609, 17121, 21359, 23267, 40827, 64077, 69801, 176917, 302471, 530751, 721277, 907413, 2163831, 9376601, 28129803]

約数ペア:

[(1, 28129803), (3, 9376601), (13, 2163831), (31, 907413), (39, 721277), (53, 530751), (93, 302471), (159, 176917), (403, 69801), (439, 64077), (689, 40827), (1209, 23267), (1317, 21359), (1643, 17121), (2067, 13609), (4929, 5707)]