68554521

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{239}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 118310400

約数和(自身を除く): 49755879

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 157, 203, 239, 261, 471, 609, 717, 1099, 1413, 1673, 1827, 2151, 3297, 4553, 5019, 6931, 9891, 13659, 15057, 20793, 31871, 37523, 40977, 48517, 62379, 95613, 112569, 145551, 262661, 286839, 337707, 436653, 787983, 1088167, 2363949, 3264501, 7617169, 9793503, 22851507, 68554521]

約数ペア:

[(1, 68554521), (3, 22851507), (7, 9793503), (9, 7617169), (21, 3264501), (29, 2363949), (63, 1088167), (87, 787983), (157, 436653), (203, 337707), (239, 286839), (261, 262661), (471, 145551), (609, 112569), (717, 95613), (1099, 62379), (1413, 48517), (1673, 40977), (1827, 37523), (2151, 31871), (3297, 20793), (4553, 15057), (5019, 13659), (6931, 9891)]