21419416

素因数分解:

$2^3\times {\mathrm{197}}^1\times {\mathrm{13591}}^1$

素因数の和:13794

約数の個数: 16

約数和(自身を含む): 40368240

約数和(自身を除く): 18948824

約数列:

[1, 2, 4, 8, 197, 394, 788, 1576, 13591, 27182, 54364, 108728, 2677427, 5354854, 10709708, 21419416]

約数ペア:

[(1, 21419416), (2, 10709708), (4, 5354854), (8, 2677427), (197, 108728), (394, 54364), (788, 27182), (1576, 13591)]