18493938

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{499}}^1$

素因数の和:607

約数の個数: 48

約数和(自身を含む): 42120000

約数和(自身を除く): 23626062

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 71, 87, 142, 174, 213, 261, 426, 499, 522, 639, 998, 1278, 1497, 2059, 2994, 4118, 4491, 6177, 8982, 12354, 14471, 18531, 28942, 35429, 37062, 43413, 70858, 86826, 106287, 130239, 212574, 260478, 318861, 637722, 1027441, 2054882, 3082323, 6164646, 9246969, 18493938]

約数ペア:

[(1, 18493938), (2, 9246969), (3, 6164646), (6, 3082323), (9, 2054882), (18, 1027441), (29, 637722), (58, 318861), (71, 260478), (87, 212574), (142, 130239), (174, 106287), (213, 86826), (261, 70858), (426, 43413), (499, 37062), (522, 35429), (639, 28942), (998, 18531), (1278, 14471), (1497, 12354), (2059, 8982), (2994, 6177), (4118, 4491)]