19941328

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{3907}}^1$

素因数の和:3955

約数の個数: 40

約数和(自身を含む): 43613280

約数和(自身を除く): 23671952

約数列:

[1, 2, 4, 8, 11, 16, 22, 29, 44, 58, 88, 116, 176, 232, 319, 464, 638, 1276, 2552, 3907, 5104, 7814, 15628, 31256, 42977, 62512, 85954, 113303, 171908, 226606, 343816, 453212, 687632, 906424, 1246333, 1812848, 2492666, 4985332, 9970664, 19941328]

約数ペア:

[(1, 19941328), (2, 9970664), (4, 4985332), (8, 2492666), (11, 1812848), (16, 1246333), (22, 906424), (29, 687632), (44, 453212), (58, 343816), (88, 226606), (116, 171908), (176, 113303), (232, 85954), (319, 62512), (464, 42977), (638, 31256), (1276, 15628), (2552, 7814), (3907, 5104)]