201789903

素因数分解:

$3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{70139}}^1$

素因数の和:70286

約数の個数: 16

約数和(自身を含む): 309738240

約数和(自身を除く): 107948337

約数列:

[1, 3, 7, 21, 137, 411, 959, 2877, 70139, 210417, 490973, 1472919, 9609043, 28827129, 67263301, 201789903]

約数ペア:

[(1, 201789903), (3, 67263301), (7, 28827129), (21, 9609043), (137, 1472919), (411, 490973), (959, 210417), (2877, 70139)]