20975912

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{55787}}^1$

素因数の和:55840

約数の個数: 16

約数和(自身を含む): 40167360

約数和(自身を除く): 19191448

約数列:

[1, 2, 4, 8, 47, 94, 188, 376, 55787, 111574, 223148, 446296, 2621989, 5243978, 10487956, 20975912]

約数ペア:

[(1, 20975912), (2, 10487956), (4, 5243978), (8, 2621989), (47, 446296), (94, 223148), (188, 111574), (376, 55787)]