19870467

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{2803}}^1$

素因数の和:2962

約数の個数: 16

約数和(自身を含む): 28264320

約数和(自身を除く): 8393853

約数列:

[1, 3, 17, 51, 139, 417, 2363, 2803, 7089, 8409, 47651, 142953, 389617, 1168851, 6623489, 19870467]

約数ペア:

[(1, 19870467), (3, 6623489), (17, 1168851), (51, 389617), (139, 142953), (417, 47651), (2363, 8409), (2803, 7089)]