21838336

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1$

素因数の和:241

約数の個数: 80

約数和(自身を含む): 50012424

約数和(自身を除く): 28174088

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 64, 68, 104, 128, 136, 193, 208, 221, 256, 272, 386, 416, 442, 512, 544, 772, 832, 884, 1088, 1544, 1664, 1768, 2176, 2509, 3088, 3281, 3328, 3536, 4352, 5018, 6176, 6562, 6656, 7072, 8704, 10036, 12352, 13124, 14144, 20072, 24704, 26248, 28288, 40144, 42653, 49408, 52496, 56576, 80288, 85306, 98816, 104992, 113152, 160576, 170612, 209984, 321152, 341224, 419968, 642304, 682448, 839936, 1284608, 1364896, 1679872, 2729792, 5459584, 10919168, 21838336]

約数ペア:

[(1, 21838336), (2, 10919168), (4, 5459584), (8, 2729792), (13, 1679872), (16, 1364896), (17, 1284608), (26, 839936), (32, 682448), (34, 642304), (52, 419968), (64, 341224), (68, 321152), (104, 209984), (128, 170612), (136, 160576), (193, 113152), (208, 104992), (221, 98816), (256, 85306), (272, 80288), (386, 56576), (416, 52496), (442, 49408), (512, 42653), (544, 40144), (772, 28288), (832, 26248), (884, 24704), (1088, 20072), (1544, 14144), (1664, 13124), (1768, 12352), (2176, 10036), (2509, 8704), (3088, 7072), (3281, 6656), (3328, 6562), (3536, 6176), (4352, 5018)]