21338769

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1\times {\mathrm{503}}^1$

素因数の和:764

約数の個数: 16

約数和(自身を含む): 29030400

約数和(自身を除く): 7691631

約数列:

[1, 3, 79, 179, 237, 503, 537, 1509, 14141, 39737, 42423, 90037, 119211, 270111, 7112923, 21338769]

約数ペア:

[(1, 21338769), (3, 7112923), (79, 270111), (179, 119211), (237, 90037), (503, 42423), (537, 39737), (1509, 14141)]