81030405

素因数分解:

$3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{55691}}^1$

素因数の和:55796

約数の個数: 16

約数和(自身を含む): 130987584

約数和(自身を除く): 49957179

約数列:

[1, 3, 5, 15, 97, 291, 485, 1455, 55691, 167073, 278455, 835365, 5402027, 16206081, 27010135, 81030405]

約数ペア:

[(1, 81030405), (3, 27010135), (5, 16206081), (15, 5402027), (97, 835365), (291, 278455), (485, 167073), (1455, 55691)]