19889470

素因数分解:

$2^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{15661}}^1$

素因数の和:15795

約数の個数: 16

約数和(自身を含む): 36085248

約数和(自身を除く): 16195778

約数列:

[1, 2, 5, 10, 127, 254, 635, 1270, 15661, 31322, 78305, 156610, 1988947, 3977894, 9944735, 19889470]

約数ペア:

[(1, 19889470), (2, 9944735), (5, 3977894), (10, 1988947), (127, 156610), (254, 78305), (635, 31322), (1270, 15661)]