20885878

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{25913}}^1$

素因数の和:25959

約数の個数: 16

約数和(自身を含む): 34828416

約数和(自身を除く): 13942538

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 25913, 51826, 336869, 673738, 803303, 1606606, 10442939, 20885878]

約数ペア:

[(1, 20885878), (2, 10442939), (13, 1606606), (26, 803303), (31, 673738), (62, 336869), (403, 51826), (806, 25913)]