18694557441

素因数分解:

$3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2134813}}^1$

素因数の和:2134965

約数の個数: 24

約数和(自身を含む): 31082891840

約数和(自身を除く): 12388334399

約数列:

[1, 3, 7, 9, 21, 63, 139, 417, 973, 1251, 2919, 8757, 2134813, 6404439, 14943691, 19213317, 44831073, 134493219, 296739007, 890217021, 2077173049, 2670651063, 6231519147, 18694557441]

約数ペア:

[(1, 18694557441), (3, 6231519147), (7, 2670651063), (9, 2077173049), (21, 890217021), (63, 296739007), (139, 134493219), (417, 44831073), (973, 19213317), (1251, 14943691), (2919, 6404439), (8757, 2134813)]