21310761

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{2729}}^1$

素因数の和:2888

約数の個数: 16

約数和(自身を含む): 30139200

約数和(自身を除く): 8828439

約数列:

[1, 3, 19, 57, 137, 411, 2603, 2729, 7809, 8187, 51851, 155553, 373873, 1121619, 7103587, 21310761]

約数ペア:

[(1, 21310761), (3, 7103587), (19, 1121619), (57, 373873), (137, 155553), (411, 51851), (2603, 8187), (2729, 7809)]