28207737

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{503}}^1$

素因数の和:610

約数の個数: 32

約数和(自身を含む): 43868160

約数和(自身を除く): 15660423

約数列:

[1, 3, 9, 27, 31, 67, 93, 201, 279, 503, 603, 837, 1509, 1809, 2077, 4527, 6231, 13581, 15593, 18693, 33701, 46779, 56079, 101103, 140337, 303309, 421011, 909927, 1044731, 3134193, 9402579, 28207737]

約数ペア:

[(1, 28207737), (3, 9402579), (9, 3134193), (27, 1044731), (31, 909927), (67, 421011), (93, 303309), (201, 140337), (279, 101103), (503, 56079), (603, 46779), (837, 33701), (1509, 18693), (1809, 15593), (2077, 13581), (4527, 6231)]