21263506

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{13613}}^1$

素因数の和:13697

約数の個数: 16

約数和(自身を含む): 35287488

約数和(自身を除く): 14023982

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 13613, 27226, 149743, 299486, 966523, 1933046, 10631753, 21263506]

約数ペア:

[(1, 21263506), (2, 10631753), (11, 1933046), (22, 966523), (71, 299486), (142, 149743), (781, 27226), (1562, 13613)]