208575213

素因数分解:

$3^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{18427}}^1$

素因数の和:18462

約数の個数: 32

約数和(自身を含む): 353817600

約数和(自身を除く): 145242387

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 343, 539, 1029, 1617, 3773, 11319, 18427, 55281, 128989, 202697, 386967, 608091, 902923, 1418879, 2708769, 4256637, 6320461, 9932153, 18961383, 29796459, 69525071, 208575213]

約数ペア:

[(1, 208575213), (3, 69525071), (7, 29796459), (11, 18961383), (21, 9932153), (33, 6320461), (49, 4256637), (77, 2708769), (147, 1418879), (231, 902923), (343, 608091), (539, 386967), (1029, 202697), (1617, 128989), (3773, 55281), (11319, 18427)]