21996794

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1$

素因数の和:386

約数の個数: 32

約数和(自身を含む): 36495360

約数和(自身を除く): 14498566

約数列:

[1, 2, 19, 31, 38, 62, 71, 142, 263, 526, 589, 1178, 1349, 2201, 2698, 4402, 4997, 8153, 9994, 16306, 18673, 37346, 41819, 83638, 154907, 309814, 354787, 578863, 709574, 1157726, 10998397, 21996794]

約数ペア:

[(1, 21996794), (2, 10998397), (19, 1157726), (31, 709574), (38, 578863), (62, 354787), (71, 309814), (142, 154907), (263, 83638), (526, 41819), (589, 37346), (1178, 18673), (1349, 16306), (2201, 9994), (2698, 8153), (4402, 4997)]