18157293

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1$

素因数の和:247

約数の個数: 72

約数和(自身を含む): 35212320

約数和(自身を除く): 17055027

約数列:

[1, 3, 7, 9, 11, 19, 21, 33, 49, 57, 63, 77, 99, 133, 147, 171, 197, 209, 231, 399, 441, 539, 591, 627, 693, 931, 1197, 1379, 1463, 1617, 1773, 1881, 2167, 2793, 3743, 4137, 4389, 4851, 6501, 8379, 9653, 10241, 11229, 12411, 13167, 15169, 19503, 26201, 28959, 30723, 33687, 41173, 45507, 78603, 86877, 92169, 106183, 123519, 136521, 183407, 235809, 288211, 318549, 370557, 550221, 864633, 955647, 1650663, 2017477, 2593899, 6052431, 18157293]

約数ペア:

[(1, 18157293), (3, 6052431), (7, 2593899), (9, 2017477), (11, 1650663), (19, 955647), (21, 864633), (33, 550221), (49, 370557), (57, 318549), (63, 288211), (77, 235809), (99, 183407), (133, 136521), (147, 123519), (171, 106183), (197, 92169), (209, 86877), (231, 78603), (399, 45507), (441, 41173), (539, 33687), (591, 30723), (627, 28959), (693, 26201), (931, 19503), (1197, 15169), (1379, 13167), (1463, 12411), (1617, 11229), (1773, 10241), (1881, 9653), (2167, 8379), (2793, 6501), (3743, 4851), (4137, 4389)]