21758504

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{1151}}^1$

素因数の和:1313

約数の個数: 32

約数和(自身を含む): 43545600

約数和(自身を除く): 21787096

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 139, 278, 556, 1112, 1151, 2302, 2363, 4604, 4726, 9208, 9452, 18904, 19567, 39134, 78268, 156536, 159989, 319978, 639956, 1279912, 2719813, 5439626, 10879252, 21758504]

約数ペア:

[(1, 21758504), (2, 10879252), (4, 5439626), (8, 2719813), (17, 1279912), (34, 639956), (68, 319978), (136, 159989), (139, 156536), (278, 78268), (556, 39134), (1112, 19567), (1151, 18904), (2302, 9452), (2363, 9208), (4604, 4726)]