19961728

素因数分解:

$2^7\times {\mathrm{277}}^1\times {\mathrm{563}}^1$

素因数の和:854

約数の個数: 32

約数和(自身を含む): 39981960

約数和(自身を除く): 20020232

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 277, 554, 563, 1108, 1126, 2216, 2252, 4432, 4504, 8864, 9008, 17728, 18016, 35456, 36032, 72064, 155951, 311902, 623804, 1247608, 2495216, 4990432, 9980864, 19961728]

約数ペア:

[(1, 19961728), (2, 9980864), (4, 4990432), (8, 2495216), (16, 1247608), (32, 623804), (64, 311902), (128, 155951), (277, 72064), (554, 36032), (563, 35456), (1108, 18016), (1126, 17728), (2216, 9008), (2252, 8864), (4432, 4504)]