20943984

素因数分解:

$2^4\times 3^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:406

約数の個数: 80

約数和(自身を含む): 57567744

約数和(自身を除く): 36623760

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 46, 48, 61, 69, 92, 122, 138, 183, 184, 244, 276, 311, 366, 368, 488, 552, 622, 732, 933, 976, 1104, 1244, 1403, 1464, 1866, 2488, 2806, 2928, 3732, 4209, 4976, 5612, 7153, 7464, 8418, 11224, 14306, 14928, 16836, 18971, 21459, 22448, 28612, 33672, 37942, 42918, 56913, 57224, 67344, 75884, 85836, 113826, 114448, 151768, 171672, 227652, 303536, 343344, 436333, 455304, 872666, 910608, 1308999, 1745332, 2617998, 3490664, 5235996, 6981328, 10471992, 20943984]

約数ペア:

[(1, 20943984), (2, 10471992), (3, 6981328), (4, 5235996), (6, 3490664), (8, 2617998), (12, 1745332), (16, 1308999), (23, 910608), (24, 872666), (46, 455304), (48, 436333), (61, 343344), (69, 303536), (92, 227652), (122, 171672), (138, 151768), (183, 114448), (184, 113826), (244, 85836), (276, 75884), (311, 67344), (366, 57224), (368, 56913), (488, 42918), (552, 37942), (622, 33672), (732, 28612), (933, 22448), (976, 21459), (1104, 18971), (1244, 16836), (1403, 14928), (1464, 14306), (1866, 11224), (2488, 8418), (2806, 7464), (2928, 7153), (3732, 5612), (4209, 4976)]