20216403081

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{13951969}}^1$

素因数の和:13952005

約数の個数: 24

約数和(自身を含む): 34824117120

約数和(自身を除く): 14607714039

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 13951969, 41855907, 97663783, 125567721, 292991349, 320895287, 878974047, 962685861, 2246267009, 2888057583, 6738801027, 20216403081]

約数ペア:

[(1, 20216403081), (3, 6738801027), (7, 2888057583), (9, 2246267009), (21, 962685861), (23, 878974047), (63, 320895287), (69, 292991349), (161, 125567721), (207, 97663783), (483, 41855907), (1449, 13951969)]