21884336

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:389

約数の個数: 40

約数和(自身を含む): 43751664

約数和(自身を除く): 21867328

約数列:

[1, 2, 4, 8, 16, 53, 106, 131, 197, 212, 262, 394, 424, 524, 788, 848, 1048, 1576, 2096, 3152, 6943, 10441, 13886, 20882, 25807, 27772, 41764, 51614, 55544, 83528, 103228, 111088, 167056, 206456, 412912, 1367771, 2735542, 5471084, 10942168, 21884336]

約数ペア:

[(1, 21884336), (2, 10942168), (4, 5471084), (8, 2735542), (16, 1367771), (53, 412912), (106, 206456), (131, 167056), (197, 111088), (212, 103228), (262, 83528), (394, 55544), (424, 51614), (524, 41764), (788, 27772), (848, 25807), (1048, 20882), (1576, 13886), (2096, 10441), (3152, 6943)]