51017967

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{809}}^1$

素因数の和:853

約数の個数: 72

約数和(自身を含む): 100835280

約数和(自身を除く): 49817313

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 49, 63, 77, 91, 99, 117, 143, 147, 231, 273, 429, 441, 539, 637, 693, 809, 819, 1001, 1287, 1617, 1911, 2427, 3003, 4851, 5663, 5733, 7007, 7281, 8899, 9009, 10517, 16989, 21021, 26697, 31551, 39641, 50967, 62293, 63063, 73619, 80091, 94653, 115687, 118923, 186879, 220857, 347061, 356769, 436051, 515333, 560637, 662571, 809809, 1041183, 1308153, 1545999, 2429427, 3924459, 4637997, 5668663, 7288281, 17005989, 51017967]

約数ペア:

[(1, 51017967), (3, 17005989), (7, 7288281), (9, 5668663), (11, 4637997), (13, 3924459), (21, 2429427), (33, 1545999), (39, 1308153), (49, 1041183), (63, 809809), (77, 662571), (91, 560637), (99, 515333), (117, 436051), (143, 356769), (147, 347061), (231, 220857), (273, 186879), (429, 118923), (441, 115687), (539, 94653), (637, 80091), (693, 73619), (809, 63063), (819, 62293), (1001, 50967), (1287, 39641), (1617, 31551), (1911, 26697), (2427, 21021), (3003, 16989), (4851, 10517), (5663, 9009), (5733, 8899), (7007, 7281)]