20978086

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1\times {\mathrm{613}}^1$

素因数の和:927

約数の個数: 16

約数和(自身を含む): 32095008

約数和(自身を除く): 11116922

約数列:

[1, 2, 71, 142, 241, 482, 613, 1226, 17111, 34222, 43523, 87046, 147733, 295466, 10489043, 20978086]

約数ペア:

[(1, 20978086), (2, 10489043), (71, 295466), (142, 147733), (241, 87046), (482, 43523), (613, 34222), (1226, 17111)]