20696428

素因数分解:

$2^2\times {\mathrm{127}}^1\times {\mathrm{131}}^1\times {\mathrm{311}}^1$

素因数の和:573

約数の個数: 24

約数和(自身を含む): 36900864

約数和(自身を除く): 16204436

約数列:

[1, 2, 4, 127, 131, 254, 262, 311, 508, 524, 622, 1244, 16637, 33274, 39497, 40741, 66548, 78994, 81482, 157988, 162964, 5174107, 10348214, 20696428]

約数ペア:

[(1, 20696428), (2, 10348214), (4, 5174107), (127, 162964), (131, 157988), (254, 81482), (262, 78994), (311, 66548), (508, 40741), (524, 39497), (622, 33274), (1244, 16637)]