20398216

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{48109}}^1$

素因数の和:48168

約数の個数: 16

約数和(自身を含む): 38969100

約数和(自身を除く): 18570884

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 48109, 96218, 192436, 384872, 2549777, 5099554, 10199108, 20398216]

約数ペア:

[(1, 20398216), (2, 10199108), (4, 5099554), (8, 2549777), (53, 384872), (106, 192436), (212, 96218), (424, 48109)]