21331419

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{1787}}^1$

素因数の和:1986

約数の個数: 16

約数和(自身を含む): 29866752

約数和(自身を除く): 8535333

約数列:

[1, 3, 23, 69, 173, 519, 1787, 3979, 5361, 11937, 41101, 123303, 309151, 927453, 7110473, 21331419]

約数ペア:

[(1, 21331419), (3, 7110473), (23, 927453), (69, 309151), (173, 123303), (519, 41101), (1787, 11937), (3979, 5361)]