994994

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:111

約数の個数: 48

約数和(自身を含む): 2068416

約数和(自身を除く): 1073422

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 49, 71, 77, 91, 98, 142, 143, 154, 182, 286, 497, 539, 637, 781, 923, 994, 1001, 1078, 1274, 1562, 1846, 2002, 3479, 5467, 6461, 6958, 7007, 10153, 10934, 12922, 14014, 20306, 38269, 45227, 71071, 76538, 90454, 142142, 497497, 994994]

約数ペア:

[(1, 994994), (2, 497497), (7, 142142), (11, 90454), (13, 76538), (14, 71071), (22, 45227), (26, 38269), (49, 20306), (71, 14014), (77, 12922), (91, 10934), (98, 10153), (142, 7007), (143, 6958), (154, 6461), (182, 5467), (286, 3479), (497, 2002), (539, 1846), (637, 1562), (781, 1274), (923, 1078), (994, 1001)]