201972001

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{20023}}^1$

素因数の和:20172

約数の個数: 16

約数和(自身を含む): 253744128

約数和(自身を除く): 51772127

約数列:

[1, 7, 11, 77, 131, 917, 1441, 10087, 20023, 140161, 220253, 1541771, 2623013, 18361091, 28853143, 201972001]

約数ペア:

[(1, 201972001), (7, 28853143), (11, 18361091), (77, 2623013), (131, 1541771), (917, 220253), (1441, 140161), (10087, 20023)]