21079079

素因数分解:

$7^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:446

約数の個数: 16

約数和(自身を含む): 24600576

約数和(自身を除く): 3521497

約数列:

[1, 7, 127, 131, 181, 889, 917, 1267, 16637, 22987, 23711, 116459, 160909, 165977, 3011297, 21079079]

約数ペア:

[(1, 21079079), (7, 3011297), (127, 165977), (131, 160909), (181, 116459), (889, 23711), (917, 22987), (1267, 16637)]