18723694

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{11987}}^1$

素因数の和:12071

約数の個数: 16

約数和(自身を含む): 31072896

約数和(自身を除く): 12349202

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 11987, 23974, 131857, 263714, 851077, 1702154, 9361847, 18723694]

約数ペア:

[(1, 18723694), (2, 9361847), (11, 1702154), (22, 851077), (71, 263714), (142, 131857), (781, 23974), (1562, 11987)]