20420978

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{641}}^1\times {\mathrm{937}}^1$

素因数の和:1597

約数の個数: 16

約数和(自身を含む): 32518584

約数和(自身を除く): 12097606

約数列:

[1, 2, 17, 34, 641, 937, 1282, 1874, 10897, 15929, 21794, 31858, 600617, 1201234, 10210489, 20420978]

約数ペア:

[(1, 20420978), (2, 10210489), (17, 1201234), (34, 600617), (641, 31858), (937, 21794), (1282, 15929), (1874, 10897)]