21172872

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{653}}^1$

素因数の和:862

約数の個数: 64

約数和(自身を含む): 60900480

約数和(自身を除く): 39727608

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 193, 386, 579, 653, 772, 1158, 1306, 1351, 1544, 1959, 2316, 2612, 2702, 3918, 4053, 4571, 4632, 5224, 5404, 7836, 8106, 9142, 10808, 13713, 15672, 16212, 18284, 27426, 32424, 36568, 54852, 109704, 126029, 252058, 378087, 504116, 756174, 882203, 1008232, 1512348, 1764406, 2646609, 3024696, 3528812, 5293218, 7057624, 10586436, 21172872]

約数ペア:

[(1, 21172872), (2, 10586436), (3, 7057624), (4, 5293218), (6, 3528812), (7, 3024696), (8, 2646609), (12, 1764406), (14, 1512348), (21, 1008232), (24, 882203), (28, 756174), (42, 504116), (56, 378087), (84, 252058), (168, 126029), (193, 109704), (386, 54852), (579, 36568), (653, 32424), (772, 27426), (1158, 18284), (1306, 16212), (1351, 15672), (1544, 13713), (1959, 10808), (2316, 9142), (2612, 8106), (2702, 7836), (3918, 5404), (4053, 5224), (4571, 4632)]