20690402

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1\times {\mathrm{503}}^1$

素因数の和:793

約数の個数: 16

約数和(自身を含む): 31534272

約数和(自身を除く): 10843870

約数列:

[1, 2, 131, 157, 262, 314, 503, 1006, 20567, 41134, 65893, 78971, 131786, 157942, 10345201, 20690402]

約数ペア:

[(1, 20690402), (2, 10345201), (131, 157942), (157, 131786), (262, 78971), (314, 65893), (503, 41134), (1006, 20567)]