20967518

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{439}}^1$

素因数の和:632

約数の個数: 32

約数和(自身を含む): 37255680

約数和(自身を除く): 16288162

約数列:

[1, 2, 11, 13, 22, 26, 143, 167, 286, 334, 439, 878, 1837, 2171, 3674, 4342, 4829, 5707, 9658, 11414, 23881, 47762, 62777, 73313, 125554, 146626, 806443, 953069, 1612886, 1906138, 10483759, 20967518]

約数ペア:

[(1, 20967518), (2, 10483759), (11, 1906138), (13, 1612886), (22, 953069), (26, 806443), (143, 146626), (167, 125554), (286, 73313), (334, 62777), (439, 47762), (878, 23881), (1837, 11414), (2171, 9658), (3674, 5707), (4342, 4829)]