19554964

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2011}}^1$

素因数の和:2056

約数の個数: 48

約数和(自身を含む): 42590016

約数和(自身を除く): 23035052

約数列:

[1, 2, 4, 11, 13, 17, 22, 26, 34, 44, 52, 68, 143, 187, 221, 286, 374, 442, 572, 748, 884, 2011, 2431, 4022, 4862, 8044, 9724, 22121, 26143, 34187, 44242, 52286, 68374, 88484, 104572, 136748, 287573, 376057, 444431, 575146, 752114, 888862, 1150292, 1504228, 1777724, 4888741, 9777482, 19554964]

約数ペア:

[(1, 19554964), (2, 9777482), (4, 4888741), (11, 1777724), (13, 1504228), (17, 1150292), (22, 888862), (26, 752114), (34, 575146), (44, 444431), (52, 376057), (68, 287573), (143, 136748), (187, 104572), (221, 88484), (286, 68374), (374, 52286), (442, 44242), (572, 34187), (748, 26143), (884, 22121), (2011, 9724), (2431, 8044), (4022, 4862)]