81561405

素因数分解:

$3^1\times 5^1\times {\mathrm{1109}}^1\times {\mathrm{4903}}^1$

素因数の和:6020

約数の個数: 16

約数和(自身を含む): 130642560

約数和(自身を除く): 49081155

約数列:

[1, 3, 5, 15, 1109, 3327, 4903, 5545, 14709, 16635, 24515, 73545, 5437427, 16312281, 27187135, 81561405]

約数ペア:

[(1, 81561405), (3, 27187135), (5, 16312281), (15, 5437427), (1109, 73545), (3327, 24515), (4903, 16635), (5545, 14709)]