19995628

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{257}}^1\times {\mathrm{367}}^1$

素因数の和:681

約数の個数: 24

約数和(自身を含む): 35888832

約数和(自身を除く): 15893204

約数列:

[1, 2, 4, 53, 106, 212, 257, 367, 514, 734, 1028, 1468, 13621, 19451, 27242, 38902, 54484, 77804, 94319, 188638, 377276, 4998907, 9997814, 19995628]

約数ペア:

[(1, 19995628), (2, 9997814), (4, 4998907), (53, 377276), (106, 188638), (212, 94319), (257, 77804), (367, 54484), (514, 38902), (734, 27242), (1028, 19451), (1468, 13621)]