19991774

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{14897}}^1$

素因数の和:14971

約数の個数: 16

約数和(自身を含む): 33252336

約数和(自身を除く): 13260562

約数列:

[1, 2, 11, 22, 61, 122, 671, 1342, 14897, 29794, 163867, 327734, 908717, 1817434, 9995887, 19991774]

約数ペア:

[(1, 19991774), (2, 9995887), (11, 1817434), (22, 908717), (61, 327734), (122, 163867), (671, 29794), (1342, 14897)]