210895986

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{359}}^1$

素因数の和:639

約数の個数: 64

約数和(自身を含む): 492687360

約数和(自身を除く): 281791374

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 71, 142, 197, 213, 359, 394, 426, 497, 591, 718, 994, 1077, 1182, 1379, 1491, 2154, 2513, 2758, 2982, 4137, 5026, 7539, 8274, 13987, 15078, 25489, 27974, 41961, 50978, 70723, 76467, 83922, 97909, 141446, 152934, 178423, 195818, 212169, 293727, 356846, 424338, 495061, 535269, 587454, 990122, 1070538, 1485183, 2970366, 5021333, 10042666, 15063999, 30127998, 35149331, 70298662, 105447993, 210895986]

約数ペア:

[(1, 210895986), (2, 105447993), (3, 70298662), (6, 35149331), (7, 30127998), (14, 15063999), (21, 10042666), (42, 5021333), (71, 2970366), (142, 1485183), (197, 1070538), (213, 990122), (359, 587454), (394, 535269), (426, 495061), (497, 424338), (591, 356846), (718, 293727), (994, 212169), (1077, 195818), (1182, 178423), (1379, 152934), (1491, 141446), (2154, 97909), (2513, 83922), (2758, 76467), (2982, 70723), (4137, 50978), (5026, 41961), (7539, 27974), (8274, 25489), (13987, 15078)]