21169680

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12601}}^1$

素因数の和:12624

約数の個数: 80

約数和(自身を含む): 75007104

約数和(自身を除く): 53837424

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12601, 25202, 37803, 50404, 63005, 75606, 88207, 100808, 126010, 151212, 176414, 189015, 201616, 252020, 264621, 302424, 352828, 378030, 441035, 504040, 529242, 604848, 705656, 756060, 882070, 1008080, 1058484, 1323105, 1411312, 1512120, 1764140, 2116968, 2646210, 3024240, 3528280, 4233936, 5292420, 7056560, 10584840, 21169680]

約数ペア:

[(1, 21169680), (2, 10584840), (3, 7056560), (4, 5292420), (5, 4233936), (6, 3528280), (7, 3024240), (8, 2646210), (10, 2116968), (12, 1764140), (14, 1512120), (15, 1411312), (16, 1323105), (20, 1058484), (21, 1008080), (24, 882070), (28, 756060), (30, 705656), (35, 604848), (40, 529242), (42, 504040), (48, 441035), (56, 378030), (60, 352828), (70, 302424), (80, 264621), (84, 252020), (105, 201616), (112, 189015), (120, 176414), (140, 151212), (168, 126010), (210, 100808), (240, 88207), (280, 75606), (336, 63005), (420, 50404), (560, 37803), (840, 25202), (1680, 12601)]