21841841

素因数分解:

$7^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{311}}^1$

素因数の和:524

約数の個数: 16

約数和(自身を含む): 25559040

約数和(自身を除く): 3717199

約数列:

[1, 7, 79, 127, 311, 553, 889, 2177, 10033, 24569, 39497, 70231, 171983, 276479, 3120263, 21841841]

約数ペア:

[(1, 21841841), (7, 3120263), (79, 276479), (127, 171983), (311, 70231), (553, 39497), (889, 24569), (2177, 10033)]