28974687

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{251}}^1$

素因数の和:523

約数の個数: 32

約数和(自身を含む): 46448640

約数和(自身を除く): 17473953

約数列:

[1, 3, 7, 21, 23, 69, 161, 239, 251, 483, 717, 753, 1673, 1757, 5019, 5271, 5497, 5773, 16491, 17319, 38479, 40411, 59989, 115437, 121233, 179967, 419923, 1259769, 1379747, 4139241, 9658229, 28974687]

約数ペア:

[(1, 28974687), (3, 9658229), (7, 4139241), (21, 1379747), (23, 1259769), (69, 419923), (161, 179967), (239, 121233), (251, 115437), (483, 59989), (717, 40411), (753, 38479), (1673, 17319), (1757, 16491), (5019, 5773), (5271, 5497)]