19747486

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{21893}}^1$

素因数の和:21947

約数の個数: 16

約数和(自身を含む): 33103728

約数和(自身を除く): 13356242

約数列:

[1, 2, 11, 22, 41, 82, 451, 902, 21893, 43786, 240823, 481646, 897613, 1795226, 9873743, 19747486]

約数ペア:

[(1, 19747486), (2, 9873743), (11, 1795226), (22, 897613), (41, 481646), (82, 240823), (451, 43786), (902, 21893)]