21053664

素因数分解:

$2^5\times 3^2\times {\mathrm{41}}^1\times {\mathrm{1783}}^1$

素因数の和:1840

約数の個数: 72

約数和(自身を含む): 61366032

約数和(自身を除く): 40312368

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 41, 48, 72, 82, 96, 123, 144, 164, 246, 288, 328, 369, 492, 656, 738, 984, 1312, 1476, 1783, 1968, 2952, 3566, 3936, 5349, 5904, 7132, 10698, 11808, 14264, 16047, 21396, 28528, 32094, 42792, 57056, 64188, 73103, 85584, 128376, 146206, 171168, 219309, 256752, 292412, 438618, 513504, 584824, 657927, 877236, 1169648, 1315854, 1754472, 2339296, 2631708, 3508944, 5263416, 7017888, 10526832, 21053664]

約数ペア:

[(1, 21053664), (2, 10526832), (3, 7017888), (4, 5263416), (6, 3508944), (8, 2631708), (9, 2339296), (12, 1754472), (16, 1315854), (18, 1169648), (24, 877236), (32, 657927), (36, 584824), (41, 513504), (48, 438618), (72, 292412), (82, 256752), (96, 219309), (123, 171168), (144, 146206), (164, 128376), (246, 85584), (288, 73103), (328, 64188), (369, 57056), (492, 42792), (656, 32094), (738, 28528), (984, 21396), (1312, 16047), (1476, 14264), (1783, 11808), (1968, 10698), (2952, 7132), (3566, 5904), (3936, 5349)]