21481656

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{127867}}^1$

素因数の和:127883

約数の個数: 32

約数和(自身を含む): 61376640

約数和(自身を除く): 39894984

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 127867, 255734, 383601, 511468, 767202, 895069, 1022936, 1534404, 1790138, 2685207, 3068808, 3580276, 5370414, 7160552, 10740828, 21481656]

約数ペア:

[(1, 21481656), (2, 10740828), (3, 7160552), (4, 5370414), (6, 3580276), (7, 3068808), (8, 2685207), (12, 1790138), (14, 1534404), (21, 1022936), (24, 895069), (28, 767202), (42, 511468), (56, 383601), (84, 255734), (168, 127867)]