21825258

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{563}}^1$

素因数の和:659

約数の個数: 64

約数和(自身を含む): 54577152

約数和(自身を除く): 32751894

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 71, 78, 91, 142, 182, 213, 273, 426, 497, 546, 563, 923, 994, 1126, 1491, 1689, 1846, 2769, 2982, 3378, 3941, 5538, 6461, 7319, 7882, 11823, 12922, 14638, 19383, 21957, 23646, 38766, 39973, 43914, 51233, 79946, 102466, 119919, 153699, 239838, 279811, 307398, 519649, 559622, 839433, 1039298, 1558947, 1678866, 3117894, 3637543, 7275086, 10912629, 21825258]

約数ペア:

[(1, 21825258), (2, 10912629), (3, 7275086), (6, 3637543), (7, 3117894), (13, 1678866), (14, 1558947), (21, 1039298), (26, 839433), (39, 559622), (42, 519649), (71, 307398), (78, 279811), (91, 239838), (142, 153699), (182, 119919), (213, 102466), (273, 79946), (426, 51233), (497, 43914), (546, 39973), (563, 38766), (923, 23646), (994, 21957), (1126, 19383), (1491, 14638), (1689, 12922), (1846, 11823), (2769, 7882), (2982, 7319), (3378, 6461), (3941, 5538)]