18000213

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2687}}^1$

素因数の和:2737

約数の個数: 32

約数和(自身を含む): 30965760

約数和(自身を除く): 12965547

約数列:

[1, 3, 7, 11, 21, 29, 33, 77, 87, 203, 231, 319, 609, 957, 2233, 2687, 6699, 8061, 18809, 29557, 56427, 77923, 88671, 206899, 233769, 545461, 620697, 857153, 1636383, 2571459, 6000071, 18000213]

約数ペア:

[(1, 18000213), (3, 6000071), (7, 2571459), (11, 1636383), (21, 857153), (29, 620697), (33, 545461), (77, 233769), (87, 206899), (203, 88671), (231, 77923), (319, 56427), (609, 29557), (957, 18809), (2233, 8061), (2687, 6699)]