19989909790

素因数分解:

$2^1\times 5^1\times {\mathrm{1093}}^1\times {\mathrm{1828903}}^1$

素因数の和:1830003

約数の個数: 16

約数和(自身を含む): 36014777568

約数和(自身を除く): 16024867778

約数列:

[1, 2, 5, 10, 1093, 2186, 5465, 10930, 1828903, 3657806, 9144515, 18289030, 1998990979, 3997981958, 9994954895, 19989909790]

約数ペア:

[(1, 19989909790), (2, 9994954895), (5, 3997981958), (10, 1998990979), (1093, 18289030), (2186, 9144515), (5465, 3657806), (10930, 1828903)]