163911321

素因数分解:

$3^2\times 7^2\times {\mathrm{137}}^1\times {\mathrm{2713}}^1$

素因数の和:2870

約数の個数: 36

約数和(自身を含む): 277528212

約数和(自身を除く): 113616891

約数列:

[1, 3, 7, 9, 21, 49, 63, 137, 147, 411, 441, 959, 1233, 2713, 2877, 6713, 8139, 8631, 18991, 20139, 24417, 56973, 60417, 132937, 170919, 371681, 398811, 1115043, 1196433, 2601767, 3345129, 7805301, 18212369, 23415903, 54637107, 163911321]

約数ペア:

[(1, 163911321), (3, 54637107), (7, 23415903), (9, 18212369), (21, 7805301), (49, 3345129), (63, 2601767), (137, 1196433), (147, 1115043), (411, 398811), (441, 371681), (959, 170919), (1233, 132937), (2713, 60417), (2877, 56973), (6713, 24417), (8139, 20139), (8631, 18991)]