18195507

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 30640896

約数和(自身を除く): 12445389

約数列:

[1, 3, 9, 11, 23, 33, 61, 69, 99, 131, 183, 207, 253, 393, 549, 671, 759, 1179, 1403, 1441, 2013, 2277, 3013, 4209, 4323, 6039, 7991, 9039, 12627, 12969, 15433, 23973, 27117, 33143, 46299, 71919, 87901, 99429, 138897, 183793, 263703, 298287, 551379, 791109, 1654137, 2021723, 6065169, 18195507]

約数ペア:

[(1, 18195507), (3, 6065169), (9, 2021723), (11, 1654137), (23, 791109), (33, 551379), (61, 298287), (69, 263703), (99, 183793), (131, 138897), (183, 99429), (207, 87901), (253, 71919), (393, 46299), (549, 33143), (671, 27117), (759, 23973), (1179, 15433), (1403, 12969), (1441, 12627), (2013, 9039), (2277, 7991), (3013, 6039), (4209, 4323)]