304860339

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{991}}^1$

素因数の和:1280

約数の個数: 48

約数和(自身を含む): 532346880

約数和(自身を除く): 227486541

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 257, 399, 771, 991, 1197, 1799, 2313, 2973, 4883, 5397, 6937, 8919, 14649, 16191, 18829, 20811, 34181, 43947, 56487, 62433, 102543, 131803, 169461, 254687, 307629, 395409, 764061, 1186227, 1782809, 2292183, 4839053, 5348427, 14517159, 16045281, 33873371, 43551477, 101620113, 304860339]

約数ペア:

[(1, 304860339), (3, 101620113), (7, 43551477), (9, 33873371), (19, 16045281), (21, 14517159), (57, 5348427), (63, 4839053), (133, 2292183), (171, 1782809), (257, 1186227), (399, 764061), (771, 395409), (991, 307629), (1197, 254687), (1799, 169461), (2313, 131803), (2973, 102543), (4883, 62433), (5397, 56487), (6937, 43947), (8919, 34181), (14649, 20811), (16191, 18829)]