20512157919

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{150979}}^1$

素因数の和:151195

約数の個数: 32

約数和(自身を含む): 31307212800

約数和(自身を除く): 10795054881

約数列:

[1, 3, 11, 23, 33, 69, 179, 253, 537, 759, 1969, 4117, 5907, 12351, 45287, 135861, 150979, 452937, 1660769, 3472517, 4982307, 10417551, 27025241, 38197687, 81075723, 114593061, 297277651, 621580543, 891832953, 1864741629, 6837385973, 20512157919]

約数ペア:

[(1, 20512157919), (3, 6837385973), (11, 1864741629), (23, 891832953), (33, 621580543), (69, 297277651), (179, 114593061), (253, 81075723), (537, 38197687), (759, 27025241), (1969, 10417551), (4117, 4982307), (5907, 3472517), (12351, 1660769), (45287, 452937), (135861, 150979)]