27938428

素因数分解:

$2^2\times 7^2\times {\mathrm{142543}}^1$

素因数の和:142561

約数の個数: 18

約数和(自身を含む): 56875056

約数和(自身を除く): 28936628

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 142543, 285086, 570172, 997801, 1995602, 3991204, 6984607, 13969214, 27938428]

約数ペア:

[(1, 27938428), (2, 13969214), (4, 6984607), (7, 3991204), (14, 1995602), (28, 997801), (49, 570172), (98, 285086), (196, 142543)]