21278882955

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1\times {\mathrm{8089}}^1$

素因数の和:8364

約数の個数: 64

約数和(自身を含む): 37744704000

約数和(自身を除く): 16465821045

約数列:

[1, 3, 5, 11, 15, 33, 55, 107, 149, 165, 321, 447, 535, 745, 1177, 1605, 1639, 2235, 3531, 4917, 5885, 8089, 8195, 15943, 17655, 24267, 24585, 40445, 47829, 79715, 88979, 121335, 175373, 239145, 266937, 444895, 526119, 865523, 876865, 1205261, 1334685, 2596569, 2630595, 3615783, 4327615, 6026305, 9520753, 12982845, 13257871, 18078915, 28562259, 39773613, 47603765, 66289355, 128962927, 142811295, 198868065, 386888781, 644814635, 1418592197, 1934443905, 4255776591, 7092960985, 21278882955]

約数ペア:

[(1, 21278882955), (3, 7092960985), (5, 4255776591), (11, 1934443905), (15, 1418592197), (33, 644814635), (55, 386888781), (107, 198868065), (149, 142811295), (165, 128962927), (321, 66289355), (447, 47603765), (535, 39773613), (745, 28562259), (1177, 18078915), (1605, 13257871), (1639, 12982845), (2235, 9520753), (3531, 6026305), (4917, 4327615), (5885, 3615783), (8089, 2630595), (8195, 2596569), (15943, 1334685), (17655, 1205261), (24267, 876865), (24585, 865523), (40445, 526119), (47829, 444895), (79715, 266937), (88979, 239145), (121335, 175373)]