247788261

素因数分解:

$3^3\times 7^1\times {\mathrm{193}}^1\times {\mathrm{6793}}^1$

素因数の和:7002

約数の個数: 32

約数和(自身を含む): 421771520

約数和(自身を除く): 173983259

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 193, 579, 1351, 1737, 4053, 5211, 6793, 12159, 20379, 36477, 47551, 61137, 142653, 183411, 427959, 1283877, 1311049, 3933147, 9177343, 11799441, 27532029, 35398323, 82596087, 247788261]

約数ペア:

[(1, 247788261), (3, 82596087), (7, 35398323), (9, 27532029), (21, 11799441), (27, 9177343), (63, 3933147), (189, 1311049), (193, 1283877), (579, 427959), (1351, 183411), (1737, 142653), (4053, 61137), (5211, 47551), (6793, 36477), (12159, 20379)]