19968592

素因数分解:

$2^4\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1361}}^1$

素因数の和:1507

約数の個数: 40

約数和(自身を含む): 44586432

約数和(自身を除く): 24617840

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 131, 262, 524, 917, 1048, 1361, 1834, 2096, 2722, 3668, 5444, 7336, 9527, 10888, 14672, 19054, 21776, 38108, 76216, 152432, 178291, 356582, 713164, 1248037, 1426328, 2496074, 2852656, 4992148, 9984296, 19968592]

約数ペア:

[(1, 19968592), (2, 9984296), (4, 4992148), (7, 2852656), (8, 2496074), (14, 1426328), (16, 1248037), (28, 713164), (56, 356582), (112, 178291), (131, 152432), (262, 76216), (524, 38108), (917, 21776), (1048, 19054), (1361, 14672), (1834, 10888), (2096, 9527), (2722, 7336), (3668, 5444)]