28420281

素因数分解:

$3^3\times {\mathrm{89}}^1\times {\mathrm{11827}}^1$

素因数の和:11925

約数の個数: 16

約数和(自身を含む): 42580800

約数和(自身を除く): 14160519

約数列:

[1, 3, 9, 27, 89, 267, 801, 2403, 11827, 35481, 106443, 319329, 1052603, 3157809, 9473427, 28420281]

約数ペア:

[(1, 28420281), (3, 9473427), (9, 3157809), (27, 1052603), (89, 319329), (267, 106443), (801, 35481), (2403, 11827)]