18639784

素因数分解:

$2^3\times {\mathrm{433}}^1\times {\mathrm{5381}}^1$

素因数の和:5820

約数の個数: 16

約数和(自身を含む): 35036820

約数和(自身を除く): 16397036

約数列:

[1, 2, 4, 8, 433, 866, 1732, 3464, 5381, 10762, 21524, 43048, 2329973, 4659946, 9319892, 18639784]

約数ペア:

[(1, 18639784), (2, 9319892), (4, 4659946), (8, 2329973), (433, 43048), (866, 21524), (1732, 10762), (3464, 5381)]