855801855

素因数分解:

$3^4\times 5^1\times {\mathrm{2113091}}^1$

素因数の和:2113108

約数の個数: 20

約数和(自身を含む): 1534104792

約数和(自身を除く): 678302937

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 2113091, 6339273, 10565455, 19017819, 31696365, 57053457, 95089095, 171160371, 285267285, 855801855]

約数ペア:

[(1, 855801855), (3, 285267285), (5, 171160371), (9, 95089095), (15, 57053457), (27, 31696365), (45, 19017819), (81, 10565455), (135, 6339273), (405, 2113091)]