21874105

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{2903}}^1$

素因数の和:3056

約数の個数: 16

約数和(自身を含む): 28854144

約数和(自身を除く): 6980039

約数列:

[1, 5, 11, 55, 137, 685, 1507, 2903, 7535, 14515, 31933, 159665, 397711, 1988555, 4374821, 21874105]

約数ペア:

[(1, 21874105), (5, 4374821), (11, 1988555), (55, 397711), (137, 159665), (685, 31933), (1507, 14515), (2903, 7535)]