28438371

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{239}}^1$

素因数の和:377

約数の個数: 40

約数和(自身を含む): 46347840

約数和(自身を除く): 17909469

約数列:

[1, 3, 9, 13, 27, 39, 81, 113, 117, 239, 339, 351, 717, 1017, 1053, 1469, 2151, 3051, 3107, 4407, 6453, 9153, 9321, 13221, 19359, 27007, 27963, 39663, 81021, 83889, 118989, 243063, 251667, 351091, 729189, 1053273, 2187567, 3159819, 9479457, 28438371]

約数ペア:

[(1, 28438371), (3, 9479457), (9, 3159819), (13, 2187567), (27, 1053273), (39, 729189), (81, 351091), (113, 251667), (117, 243063), (239, 118989), (339, 83889), (351, 81021), (717, 39663), (1017, 27963), (1053, 27007), (1469, 19359), (2151, 13221), (3051, 9321), (3107, 9153), (4407, 6453)]