18784908

素因数分解:

$2^2\times 3^2\times {\mathrm{211}}^1\times {\mathrm{2473}}^1$

素因数の和:2694

約数の個数: 36

約数和(自身を含む): 47728408

約数和(自身を除く): 28943500

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 211, 422, 633, 844, 1266, 1899, 2473, 2532, 3798, 4946, 7419, 7596, 9892, 14838, 22257, 29676, 44514, 89028, 521803, 1043606, 1565409, 2087212, 3130818, 4696227, 6261636, 9392454, 18784908]

約数ペア:

[(1, 18784908), (2, 9392454), (3, 6261636), (4, 4696227), (6, 3130818), (9, 2087212), (12, 1565409), (18, 1043606), (36, 521803), (211, 89028), (422, 44514), (633, 29676), (844, 22257), (1266, 14838), (1899, 9892), (2473, 7596), (2532, 7419), (3798, 4946)]