21321728

素因数分解:

$2^{11}\times {\mathrm{29}}^1\times {\mathrm{359}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 44226000

約数和(自身を除く): 22904272

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 116, 128, 232, 256, 359, 464, 512, 718, 928, 1024, 1436, 1856, 2048, 2872, 3712, 5744, 7424, 10411, 11488, 14848, 20822, 22976, 29696, 41644, 45952, 59392, 83288, 91904, 166576, 183808, 333152, 367616, 666304, 735232, 1332608, 2665216, 5330432, 10660864, 21321728]

約数ペア:

[(1, 21321728), (2, 10660864), (4, 5330432), (8, 2665216), (16, 1332608), (29, 735232), (32, 666304), (58, 367616), (64, 333152), (116, 183808), (128, 166576), (232, 91904), (256, 83288), (359, 59392), (464, 45952), (512, 41644), (718, 29696), (928, 22976), (1024, 20822), (1436, 14848), (1856, 11488), (2048, 10411), (2872, 7424), (3712, 5744)]