20157124

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{883}}^1$

素因数の和:1339

約数の個数: 24

約数和(自身を含む): 38118080

約数和(自身を除く): 17960956

約数列:

[1, 2, 4, 13, 26, 52, 439, 878, 883, 1756, 1766, 3532, 5707, 11414, 11479, 22828, 22958, 45916, 387637, 775274, 1550548, 5039281, 10078562, 20157124]

約数ペア:

[(1, 20157124), (2, 10078562), (4, 5039281), (13, 1550548), (26, 775274), (52, 387637), (439, 45916), (878, 22958), (883, 22828), (1756, 11479), (1766, 11414), (3532, 5707)]