20871266

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{5113}}^1$

素因数の和:5285

約数の個数: 16

約数和(自身を含む): 33936504

約数和(自身を除く): 13065238

約数列:

[1, 2, 13, 26, 157, 314, 2041, 4082, 5113, 10226, 66469, 132938, 802741, 1605482, 10435633, 20871266]

約数ペア:

[(1, 20871266), (2, 10435633), (13, 1605482), (26, 802741), (157, 132938), (314, 66469), (2041, 10226), (4082, 5113)]