20187785541

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1213}}^1\times {\mathrm{72047}}^1$

素因数の和:73281

約数の個数: 32

約数和(自身を含む): 33587048448

約数和(自身を除く): 13399262907

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 1213, 3639, 8491, 13343, 25473, 40029, 72047, 93401, 216141, 280203, 504329, 792517, 1512987, 2377551, 5547619, 16642857, 87393011, 262179033, 611751077, 961323121, 1835253231, 2883969363, 6729261847, 20187785541]

約数ペア:

[(1, 20187785541), (3, 6729261847), (7, 2883969363), (11, 1835253231), (21, 961323121), (33, 611751077), (77, 262179033), (231, 87393011), (1213, 16642857), (3639, 5547619), (8491, 2377551), (13343, 1512987), (25473, 792517), (40029, 504329), (72047, 280203), (93401, 216141)]