20174952987

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{63577}}^1$

素因数の和:63689

約数の個数: 64

約数和(自身を含む): 36132648960

約数和(自身を除く): 15957695973

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 73, 161, 189, 207, 219, 483, 511, 621, 657, 1449, 1533, 1679, 1971, 4347, 4599, 5037, 11753, 13797, 15111, 35259, 45333, 63577, 105777, 190731, 317331, 445039, 572193, 1335117, 1462271, 1716579, 4005351, 4386813, 4641121, 10235897, 12016053, 13160439, 13923363, 30707691, 32487847, 39481317, 41770089, 92123073, 97463541, 106745783, 125310267, 276369219, 292390623, 320237349, 747220481, 877171869, 960712047, 2241661443, 2882136141, 6724984329, 20174952987]

約数ペア:

[(1, 20174952987), (3, 6724984329), (7, 2882136141), (9, 2241661443), (21, 960712047), (23, 877171869), (27, 747220481), (63, 320237349), (69, 292390623), (73, 276369219), (161, 125310267), (189, 106745783), (207, 97463541), (219, 92123073), (483, 41770089), (511, 39481317), (621, 32487847), (657, 30707691), (1449, 13923363), (1533, 13160439), (1679, 12016053), (1971, 10235897), (4347, 4641121), (4599, 4386813), (5037, 4005351), (11753, 1716579), (13797, 1462271), (15111, 1335117), (35259, 572193), (45333, 445039), (63577, 317331), (105777, 190731)]