20643672

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1193}}^1$

素因数の和:1312

約数の個数: 64

約数和(自身を含む): 59604480

約数和(自身を除く): 38960808

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 103, 168, 206, 309, 412, 618, 721, 824, 1193, 1236, 1442, 2163, 2386, 2472, 2884, 3579, 4326, 4772, 5768, 7158, 8351, 8652, 9544, 14316, 16702, 17304, 25053, 28632, 33404, 50106, 66808, 100212, 122879, 200424, 245758, 368637, 491516, 737274, 860153, 983032, 1474548, 1720306, 2580459, 2949096, 3440612, 5160918, 6881224, 10321836, 20643672]

約数ペア:

[(1, 20643672), (2, 10321836), (3, 6881224), (4, 5160918), (6, 3440612), (7, 2949096), (8, 2580459), (12, 1720306), (14, 1474548), (21, 983032), (24, 860153), (28, 737274), (42, 491516), (56, 368637), (84, 245758), (103, 200424), (168, 122879), (206, 100212), (309, 66808), (412, 50106), (618, 33404), (721, 28632), (824, 25053), (1193, 17304), (1236, 16702), (1442, 14316), (2163, 9544), (2386, 8652), (2472, 8351), (2884, 7158), (3579, 5768), (4326, 4772)]