21585656

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{479}}^1$

素因数の和:659

約数の個数: 32

約数和(自身を含む): 41817600

約数和(自身を除く): 20231944

約数列:

[1, 2, 4, 8, 43, 86, 131, 172, 262, 344, 479, 524, 958, 1048, 1916, 3832, 5633, 11266, 20597, 22532, 41194, 45064, 62749, 82388, 125498, 164776, 250996, 501992, 2698207, 5396414, 10792828, 21585656]

約数ペア:

[(1, 21585656), (2, 10792828), (4, 5396414), (8, 2698207), (43, 501992), (86, 250996), (131, 164776), (172, 125498), (262, 82388), (344, 62749), (479, 45064), (524, 41194), (958, 22532), (1048, 20597), (1916, 11266), (3832, 5633)]