21257616

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1$

素因数の和:376

約数の個数: 80

約数和(自身を含む): 58924800

約数和(自身を除く): 37667184

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 68, 102, 109, 136, 204, 218, 239, 272, 327, 408, 436, 478, 654, 717, 816, 872, 956, 1308, 1434, 1744, 1853, 1912, 2616, 2868, 3706, 3824, 4063, 5232, 5559, 5736, 7412, 8126, 11118, 11472, 12189, 14824, 16252, 22236, 24378, 26051, 29648, 32504, 44472, 48756, 52102, 65008, 78153, 88944, 97512, 104204, 156306, 195024, 208408, 312612, 416816, 442867, 625224, 885734, 1250448, 1328601, 1771468, 2657202, 3542936, 5314404, 7085872, 10628808, 21257616]

約数ペア:

[(1, 21257616), (2, 10628808), (3, 7085872), (4, 5314404), (6, 3542936), (8, 2657202), (12, 1771468), (16, 1328601), (17, 1250448), (24, 885734), (34, 625224), (48, 442867), (51, 416816), (68, 312612), (102, 208408), (109, 195024), (136, 156306), (204, 104204), (218, 97512), (239, 88944), (272, 78153), (327, 65008), (408, 52102), (436, 48756), (478, 44472), (654, 32504), (717, 29648), (816, 26051), (872, 24378), (956, 22236), (1308, 16252), (1434, 14824), (1744, 12189), (1853, 11472), (1912, 11118), (2616, 8126), (2868, 7412), (3706, 5736), (3824, 5559), (4063, 5232)]