218503047

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{4177}}^1$

素因数の和:4287

約数の個数: 32

約数和(自身を含む): 346540032

約数和(自身を除く): 128036985

約数列:

[1, 3, 7, 21, 47, 53, 141, 159, 329, 371, 987, 1113, 2491, 4177, 7473, 12531, 17437, 29239, 52311, 87717, 196319, 221381, 588957, 664143, 1374233, 1549667, 4122699, 4649001, 10404907, 31214721, 72834349, 218503047]

約数ペア:

[(1, 218503047), (3, 72834349), (7, 31214721), (21, 10404907), (47, 4649001), (53, 4122699), (141, 1549667), (159, 1374233), (329, 664143), (371, 588957), (987, 221381), (1113, 196319), (2491, 87717), (4177, 52311), (7473, 29239), (12531, 17437)]