19917824

素因数分解:

$2^{10}\times {\mathrm{53}}^1\times {\mathrm{367}}^1$

素因数の和:440

約数の個数: 44

約数和(自身を含む): 40677984

約数和(自身を除く): 20760160

約数列:

[1, 2, 4, 8, 16, 32, 53, 64, 106, 128, 212, 256, 367, 424, 512, 734, 848, 1024, 1468, 1696, 2936, 3392, 5872, 6784, 11744, 13568, 19451, 23488, 27136, 38902, 46976, 54272, 77804, 93952, 155608, 187904, 311216, 375808, 622432, 1244864, 2489728, 4979456, 9958912, 19917824]

約数ペア:

[(1, 19917824), (2, 9958912), (4, 4979456), (8, 2489728), (16, 1244864), (32, 622432), (53, 375808), (64, 311216), (106, 187904), (128, 155608), (212, 93952), (256, 77804), (367, 54272), (424, 46976), (512, 38902), (734, 27136), (848, 23488), (1024, 19451), (1468, 13568), (1696, 11744), (2936, 6784), (3392, 5872)]