27900855

素因数分解:

$3^4\times 5^1\times {\mathrm{68891}}^1$

素因数の和:68908

約数の個数: 20

約数和(自身を含む): 50015592

約数和(自身を除く): 22114737

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 68891, 206673, 344455, 620019, 1033365, 1860057, 3100095, 5580171, 9300285, 27900855]

約数ペア:

[(1, 27900855), (3, 9300285), (5, 5580171), (9, 3100095), (15, 1860057), (27, 1033365), (45, 620019), (81, 344455), (135, 206673), (405, 68891)]