28108908

素因数分解:

$2^2\times 3^2\times {\mathrm{780803}}^1$

素因数の和:780813

約数の個数: 18

約数和(自身を含む): 71053164

約数和(自身を除く): 42944256

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 780803, 1561606, 2342409, 3123212, 4684818, 7027227, 9369636, 14054454, 28108908]

約数ペア:

[(1, 28108908), (2, 14054454), (3, 9369636), (4, 7027227), (6, 4684818), (9, 3123212), (12, 2342409), (18, 1561606), (36, 780803)]