20883499

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:299

約数の個数: 24

約数和(自身を含む): 26234880

約数和(自身を除く): 5351381

約数列:

[1, 7, 13, 91, 127, 139, 169, 889, 973, 1183, 1651, 1807, 11557, 12649, 17653, 21463, 23491, 123571, 150241, 164437, 229489, 1606423, 2983357, 20883499]

約数ペア:

[(1, 20883499), (7, 2983357), (13, 1606423), (91, 229489), (127, 164437), (139, 150241), (169, 123571), (889, 23491), (973, 21463), (1183, 17653), (1651, 12649), (1807, 11557)]