18365778

素因数分解:

$2^1\times 3^4\times {\mathrm{73}}^1\times {\mathrm{1553}}^1$

素因数の和:1640

約数の個数: 40

約数和(自身を含む): 41743548

約数和(自身を除く): 23377770

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 73, 81, 146, 162, 219, 438, 657, 1314, 1553, 1971, 3106, 3942, 4659, 5913, 9318, 11826, 13977, 27954, 41931, 83862, 113369, 125793, 226738, 251586, 340107, 680214, 1020321, 2040642, 3060963, 6121926, 9182889, 18365778]

約数ペア:

[(1, 18365778), (2, 9182889), (3, 6121926), (6, 3060963), (9, 2040642), (18, 1020321), (27, 680214), (54, 340107), (73, 251586), (81, 226738), (146, 125793), (162, 113369), (219, 83862), (438, 41931), (657, 27954), (1314, 13977), (1553, 11826), (1971, 9318), (3106, 5913), (3942, 4659)]