19871434

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{29137}}^1$

素因数の和:29181

約数の個数: 16

約数和(自身を含む): 33566976

約数和(自身を除く): 13695542

約数列:

[1, 2, 11, 22, 31, 62, 341, 682, 29137, 58274, 320507, 641014, 903247, 1806494, 9935717, 19871434]

約数ペア:

[(1, 19871434), (2, 9935717), (11, 1806494), (22, 903247), (31, 641014), (62, 320507), (341, 58274), (682, 29137)]