21615146

素因数分解:

$2^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{12157}}^1$

素因数の和:12293

約数の個数: 16

約数和(自身を含む): 37349376

約数和(自身を除く): 15734230

約数列:

[1, 2, 7, 14, 127, 254, 889, 1778, 12157, 24314, 85099, 170198, 1543939, 3087878, 10807573, 21615146]

約数ペア:

[(1, 21615146), (2, 10807573), (7, 3087878), (14, 1543939), (127, 170198), (254, 85099), (889, 24314), (1778, 12157)]