20656648

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{135899}}^1$

素因数の和:135924

約数の個数: 16

約数和(自身を含む): 40770000

約数和(自身を除く): 20113352

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 135899, 271798, 543596, 1087192, 2582081, 5164162, 10328324, 20656648]

約数ペア:

[(1, 20656648), (2, 10328324), (4, 5164162), (8, 2582081), (19, 1087192), (38, 543596), (76, 271798), (152, 135899)]