18888518

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{647}}^1\times {\mathrm{1327}}^1$

素因数の和:1987

約数の個数: 16

約数和(自身を含む): 30979584

約数和(自身を除く): 12091066

約数列:

[1, 2, 11, 22, 647, 1294, 1327, 2654, 7117, 14234, 14597, 29194, 858569, 1717138, 9444259, 18888518]

約数ペア:

[(1, 18888518), (2, 9444259), (11, 1717138), (22, 858569), (647, 29194), (1294, 14597), (1327, 14234), (2654, 7117)]