20801296

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{18311}}^1$

素因数の和:18390

約数の個数: 20

約数和(自身を含む): 40872384

約数和(自身を除く): 20071088

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 18311, 36622, 73244, 146488, 292976, 1300081, 2600162, 5200324, 10400648, 20801296]

約数ペア:

[(1, 20801296), (2, 10400648), (4, 5200324), (8, 2600162), (16, 1300081), (71, 292976), (142, 146488), (284, 73244), (568, 36622), (1136, 18311)]