21243548

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{1093}}^1$

素因数の和:1253

約数の個数: 24

約数和(自身を含む): 38412528

約数和(自身を除く): 17168980

約数列:

[1, 2, 4, 43, 86, 113, 172, 226, 452, 1093, 2186, 4372, 4859, 9718, 19436, 46999, 93998, 123509, 187996, 247018, 494036, 5310887, 10621774, 21243548]

約数ペア:

[(1, 21243548), (2, 10621774), (4, 5310887), (43, 494036), (86, 247018), (113, 187996), (172, 123509), (226, 93998), (452, 46999), (1093, 19436), (2186, 9718), (4372, 4859)]