18871294

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{38201}}^1$

素因数の和:38235

約数の個数: 16

約数和(自身を含む): 32089680

約数和(自身を除く): 13218386

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 38201, 76402, 496613, 725819, 993226, 1451638, 9435647, 18871294]

約数ペア:

[(1, 18871294), (2, 9435647), (13, 1451638), (19, 993226), (26, 725819), (38, 496613), (247, 76402), (494, 38201)]