21280710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{1093}}^1$

素因数の和:1173

約数の個数: 64

約数和(自身を含む): 56712960

約数和(自身を除く): 35432250

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 59, 66, 110, 118, 165, 177, 295, 330, 354, 590, 649, 885, 1093, 1298, 1770, 1947, 2186, 3245, 3279, 3894, 5465, 6490, 6558, 9735, 10930, 12023, 16395, 19470, 24046, 32790, 36069, 60115, 64487, 72138, 120230, 128974, 180345, 193461, 322435, 360690, 386922, 644870, 709357, 967305, 1418714, 1934610, 2128071, 3546785, 4256142, 7093570, 10640355, 21280710]

約数ペア:

[(1, 21280710), (2, 10640355), (3, 7093570), (5, 4256142), (6, 3546785), (10, 2128071), (11, 1934610), (15, 1418714), (22, 967305), (30, 709357), (33, 644870), (55, 386922), (59, 360690), (66, 322435), (110, 193461), (118, 180345), (165, 128974), (177, 120230), (295, 72138), (330, 64487), (354, 60115), (590, 36069), (649, 32790), (885, 24046), (1093, 19470), (1298, 16395), (1770, 12023), (1947, 10930), (2186, 9735), (3245, 6558), (3279, 6490), (3894, 5465)]