19641728

素因数分解:

$2^7\times {\mathrm{173}}^1\times {\mathrm{887}}^1$

素因数の和:1074

約数の個数: 32

約数和(自身を含む): 39400560

約数和(自身を除く): 19758832

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 173, 346, 692, 887, 1384, 1774, 2768, 3548, 5536, 7096, 11072, 14192, 22144, 28384, 56768, 113536, 153451, 306902, 613804, 1227608, 2455216, 4910432, 9820864, 19641728]

約数ペア:

[(1, 19641728), (2, 9820864), (4, 4910432), (8, 2455216), (16, 1227608), (32, 613804), (64, 306902), (128, 153451), (173, 113536), (346, 56768), (692, 28384), (887, 22144), (1384, 14192), (1774, 11072), (2768, 7096), (3548, 5536)]