21614672

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:491

約数の個数: 40

約数和(自身を含む): 43390080

約数和(自身を除く): 21775408

約数列:

[1, 2, 4, 8, 16, 53, 71, 106, 142, 212, 284, 359, 424, 568, 718, 848, 1136, 1436, 2872, 3763, 5744, 7526, 15052, 19027, 25489, 30104, 38054, 50978, 60208, 76108, 101956, 152216, 203912, 304432, 407824, 1350917, 2701834, 5403668, 10807336, 21614672]

約数ペア:

[(1, 21614672), (2, 10807336), (4, 5403668), (8, 2701834), (16, 1350917), (53, 407824), (71, 304432), (106, 203912), (142, 152216), (212, 101956), (284, 76108), (359, 60208), (424, 50978), (568, 38054), (718, 30104), (848, 25489), (1136, 19027), (1436, 15052), (2872, 7526), (3763, 5744)]