205454907

素因数分解:

$3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{229}}^1$

素因数の和:393

約数の個数: 64

約数和(自身を含む): 360345600

約数和(自身を除く): 154890693

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 101, 141, 189, 229, 303, 329, 423, 687, 707, 909, 987, 1269, 1603, 2061, 2121, 2727, 2961, 4747, 4809, 6183, 6363, 8883, 10763, 14241, 14427, 19089, 23129, 32289, 33229, 42723, 43281, 69387, 75341, 96867, 99687, 128169, 161903, 208161, 226023, 290601, 299061, 485709, 624483, 678069, 897183, 1087063, 1457127, 2034207, 3261189, 4371381, 7609441, 9783567, 22828323, 29350701, 68484969, 205454907]

約数ペア:

[(1, 205454907), (3, 68484969), (7, 29350701), (9, 22828323), (21, 9783567), (27, 7609441), (47, 4371381), (63, 3261189), (101, 2034207), (141, 1457127), (189, 1087063), (229, 897183), (303, 678069), (329, 624483), (423, 485709), (687, 299061), (707, 290601), (909, 226023), (987, 208161), (1269, 161903), (1603, 128169), (2061, 99687), (2121, 96867), (2727, 75341), (2961, 69387), (4747, 43281), (4809, 42723), (6183, 33229), (6363, 32289), (8883, 23129), (10763, 19089), (14241, 14427)]