13399256

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{6781}}^1$

素因数の和:6819

約数の個数: 32

約数和(自身を含む): 28484400

約数和(自身を除く): 15085144

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 6781, 13562, 27124, 54248, 88153, 128839, 176306, 257678, 352612, 515356, 705224, 1030712, 1674907, 3349814, 6699628, 13399256]

約数ペア:

[(1, 13399256), (2, 6699628), (4, 3349814), (8, 1674907), (13, 1030712), (19, 705224), (26, 515356), (38, 352612), (52, 257678), (76, 176306), (104, 128839), (152, 88153), (247, 54248), (494, 27124), (988, 13562), (1976, 6781)]