19158172

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{1721}}^1$

素因数の和:1770

約数の個数: 36

約数和(自身を含む): 38476368

約数和(自身を除く): 19318196

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 121, 242, 253, 484, 506, 1012, 1721, 2783, 3442, 5566, 6884, 11132, 18931, 37862, 39583, 75724, 79166, 158332, 208241, 416482, 435413, 832964, 870826, 1741652, 4789543, 9579086, 19158172]

約数ペア:

[(1, 19158172), (2, 9579086), (4, 4789543), (11, 1741652), (22, 870826), (23, 832964), (44, 435413), (46, 416482), (92, 208241), (121, 158332), (242, 79166), (253, 75724), (484, 39583), (506, 37862), (1012, 18931), (1721, 11132), (2783, 6884), (3442, 5566)]