21159470

素因数分解:

$2^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{16661}}^1$

素因数の和:16795

約数の個数: 16

約数和(自身を含む): 38389248

約数和(自身を除く): 17229778

約数列:

[1, 2, 5, 10, 127, 254, 635, 1270, 16661, 33322, 83305, 166610, 2115947, 4231894, 10579735, 21159470]

約数ペア:

[(1, 21159470), (2, 10579735), (5, 4231894), (10, 2115947), (127, 166610), (254, 83305), (635, 33322), (1270, 16661)]