20664584

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{54959}}^1$

素因数の和:55012

約数の個数: 16

約数和(自身を含む): 39571200

約数和(自身を除く): 18906616

約数列:

[1, 2, 4, 8, 47, 94, 188, 376, 54959, 109918, 219836, 439672, 2583073, 5166146, 10332292, 20664584]

約数ペア:

[(1, 20664584), (2, 10332292), (4, 5166146), (8, 2583073), (47, 439672), (94, 219836), (188, 109918), (376, 54959)]