19957738

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{373}}^1\times {\mathrm{863}}^1$

素因数の和:1269

約数の個数: 16

約数和(自身を含む): 31021056

約数和(自身を除く): 11063318

約数列:

[1, 2, 31, 62, 373, 746, 863, 1726, 11563, 23126, 26753, 53506, 321899, 643798, 9978869, 19957738]

約数ペア:

[(1, 19957738), (2, 9978869), (31, 643798), (62, 321899), (373, 53506), (746, 26753), (863, 23126), (1726, 11563)]