28191405

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{170857}}^1$

素因数の和:170876

約数の個数: 16

約数和(自身を含む): 49207104

約数和(自身を除く): 21015699

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 170857, 512571, 854285, 1879427, 2562855, 5638281, 9397135, 28191405]

約数ペア:

[(1, 28191405), (3, 9397135), (5, 5638281), (11, 2562855), (15, 1879427), (33, 854285), (55, 512571), (165, 170857)]