18538203

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{1097}}^1$

素因数の和:1274

約数の個数: 16

約数和(自身を含む): 25508736

約数和(自身を除く): 6970533

約数列:

[1, 3, 43, 129, 131, 393, 1097, 3291, 5633, 16899, 47171, 141513, 143707, 431121, 6179401, 18538203]

約数ペア:

[(1, 18538203), (3, 6179401), (43, 431121), (129, 143707), (131, 141513), (393, 47171), (1097, 16899), (3291, 5633)]