21252704

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{349}}^1$

素因数の和:543

約数の個数: 48

約数和(自身を含む): 46040400

約数和(自身を除く): 24787696

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 173, 176, 346, 349, 352, 692, 698, 1384, 1396, 1903, 2768, 2792, 3806, 3839, 5536, 5584, 7612, 7678, 11168, 15224, 15356, 30448, 30712, 60377, 60896, 61424, 120754, 122848, 241508, 483016, 664147, 966032, 1328294, 1932064, 2656588, 5313176, 10626352, 21252704]

約数ペア:

[(1, 21252704), (2, 10626352), (4, 5313176), (8, 2656588), (11, 1932064), (16, 1328294), (22, 966032), (32, 664147), (44, 483016), (88, 241508), (173, 122848), (176, 120754), (346, 61424), (349, 60896), (352, 60377), (692, 30712), (698, 30448), (1384, 15356), (1396, 15224), (1903, 11168), (2768, 7678), (2792, 7612), (3806, 5584), (3839, 5536)]