18072909

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1$

素因数の和:354

約数の個数: 32

約数和(自身を含む): 27968000

約数和(自身を除く): 9895091

約数列:

[1, 3, 9, 27, 37, 79, 111, 229, 237, 333, 687, 711, 999, 2061, 2133, 2923, 6183, 8473, 8769, 18091, 25419, 26307, 54273, 76257, 78921, 162819, 228771, 488457, 669367, 2008101, 6024303, 18072909]

約数ペア:

[(1, 18072909), (3, 6024303), (9, 2008101), (27, 669367), (37, 488457), (79, 228771), (111, 162819), (229, 78921), (237, 76257), (333, 54273), (687, 26307), (711, 25419), (999, 18091), (2061, 8769), (2133, 8473), (2923, 6183)]