28931217

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 48153600

約数和(自身を除く): 19222383

約数列:

[1, 3, 7, 21, 23, 43, 49, 69, 129, 147, 161, 199, 301, 483, 597, 903, 989, 1127, 1393, 2107, 2967, 3381, 4179, 4577, 6321, 6923, 8557, 9751, 13731, 20769, 25671, 29253, 32039, 48461, 59899, 96117, 145383, 179697, 196811, 224273, 419293, 590433, 672819, 1257879, 1377677, 4133031, 9643739, 28931217]

約数ペア:

[(1, 28931217), (3, 9643739), (7, 4133031), (21, 1377677), (23, 1257879), (43, 672819), (49, 590433), (69, 419293), (129, 224273), (147, 196811), (161, 179697), (199, 145383), (301, 96117), (483, 59899), (597, 48461), (903, 32039), (989, 29253), (1127, 25671), (1393, 20769), (2107, 13731), (2967, 9751), (3381, 8557), (4179, 6923), (4577, 6321)]