81728703

素因数分解:

$3^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1$

素因数の和:309

約数の個数: 64

約数和(自身を含む): 145152000

約数和(自身を除く): 63423297

約数列:

[1, 3, 7, 9, 21, 27, 41, 53, 63, 123, 159, 189, 199, 287, 369, 371, 477, 597, 861, 1107, 1113, 1393, 1431, 1791, 2173, 2583, 3339, 4179, 5373, 6519, 7749, 8159, 10017, 10547, 12537, 15211, 19557, 24477, 31641, 37611, 45633, 57113, 58671, 73431, 73829, 94923, 136899, 171339, 220293, 221487, 284769, 410697, 432427, 514017, 664461, 1297281, 1542051, 1993383, 3026989, 3891843, 9080967, 11675529, 27242901, 81728703]

約数ペア:

[(1, 81728703), (3, 27242901), (7, 11675529), (9, 9080967), (21, 3891843), (27, 3026989), (41, 1993383), (53, 1542051), (63, 1297281), (123, 664461), (159, 514017), (189, 432427), (199, 410697), (287, 284769), (369, 221487), (371, 220293), (477, 171339), (597, 136899), (861, 94923), (1107, 73829), (1113, 73431), (1393, 58671), (1431, 57113), (1791, 45633), (2173, 37611), (2583, 31641), (3339, 24477), (4179, 19557), (5373, 15211), (6519, 12537), (7749, 10547), (8159, 10017)]